diff --git a/assets/diagrams/activity/download.svg b/assets/diagrams/activity/download.svg
index 20419c6..bef2e37 100644
--- a/assets/diagrams/activity/download.svg
+++ b/assets/diagrams/activity/download.svg
@@ -1 +1 @@
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y="6" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe flex-start;justify-content:unsafe flex-start;width:158px;height:1px;padding-top:13px;margin-left:572px"><div style="box-sizing:border-box;font-size:0;text-align:left"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal"><span style="color:#000;font-family:&quot;helvetica&quot;;font-size:12px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0;text-transform:none;word-spacing:0;display:inline;float:none">Backend Repo: /FileHandler</span></div></div></div></foreignObject><text x="572" y="25" fill="#000" 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style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">request Fileinformation</div></div></div></foreignObject><text x="650" y="315" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">request Fileinformation</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 360 471 L 360 491 L 520 491 L 520 451 L 640 451 L 640 464.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 640 469.88 L 636.5 462.88 L 640 464.63 L 643.5 462.88 Z" pointer-events="all"/><rect width="160" height="80" x="280" y="391" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" 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requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:651px;margin-left:720px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">yes</div></div></div></foreignObject><text x="720" y="654" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">yes</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 640 671 L 640 691 L 105 691 L 105 704.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 105 709.88 L 101.5 702.88 L 105 704.63 L 108.5 702.88 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:691px;margin-left:373px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">no</div></div></div></foreignObject><text x="373" y="694" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">no</text></switch></g><path fill="#fff" stroke="#000" stroke-miterlimit="10" d="M 640 591 L 680 631 L 640 671 L 600 631 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:78px;height:1px;padding-top:631px;margin-left:601px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">multiple files?</div></div></div></foreignObject><text x="640" y="635" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">multiple file...</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 105 791 L 105 824.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 105 829.88 L 101.5 822.88 L 105 824.63 L 108.5 822.88 Z" pointer-events="all"/><rect width="160" height="80" x="25" y="711" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:751px;margin-left:26px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Download in new Tab</div></div></div></foreignObject><text x="105" y="755" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Download in new Tab</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 640 551 L 640 584.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 640 589.88 L 636.5 582.88 L 640 584.63 L 643.5 582.88 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:571px;margin-left:640px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">yes</div></div></div></foreignObject><text x="640" y="574" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">yes</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 600 511 L 191.37 511" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 186.12 511 L 193.12 507.5 L 191.37 511 L 193.12 514.5 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:511px;margin-left:393px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">no</div></div></div></foreignObject><text x="393" y="514" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">no</text></switch></g><path fill="#fff" stroke="#000" stroke-miterlimit="10" d="M 640 471 L 680 511 L 640 551 L 600 511 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:78px;height:1px;padding-top:511px;margin-left:601px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">allowed to Download?</div></div></div></foreignObject><text x="640" y="515" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">allowed to Do...</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 105 551 L 105 594.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 105 599.88 L 101.5 592.88 L 105 594.63 L 108.5 592.88 Z" pointer-events="all"/><rect width="160" 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fill="none" stroke="red" pointer-events="all" rx="15" ry="15"/><ellipse cx="105" cy="846" fill="#000" stroke="red" pointer-events="all" rx="11" ry="11"/><ellipse cx="105" cy="846" fill="none" stroke="red" pointer-events="all" rx="15" ry="15"/></g><switch><a target="_blank" transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems"><text x="50%" y="100%" font-size="10" text-anchor="middle"></text></a></switch></svg>
\ No newline at end of file
diff --git a/assets/diagrams/activity/search.svg b/assets/diagrams/activity/search.svg
index a9eb985..ed927ac 100644
--- a/assets/diagrams/activity/search.svg
+++ b/assets/diagrams/activity/search.svg
@@ -1 +1 @@
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name=&quot;Page-1&quot;&gt;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&lt;/diagram&gt;&lt;/mxfile&gt;" version="1.1" viewBox="-0.5 -0.5 681 994"><g><path fill="none" stroke="#000" stroke-dasharray="2 6" stroke-miterlimit="10" stroke-width="2" d="M 430 991 L 430 1" pointer-events="stroke"/><rect width="170" height="20" x="210" y="11" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:168px;height:1px;padding-top:21px;margin-left:211px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">User/Frontend Repo: /Webapp</div></div></div></foreignObject><text x="295" y="25" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">User/Frontend Repo: /Webapp</text></switch></g><rect width="160" height="20" x="490" y="11" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:21px;margin-left:491px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Backend Repo: /Rest</div></div></div></foreignObject><text x="570" y="25" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Backend Repo: /Rest</text></switch></g><ellipse cx="325" cy="66" fill="#000" stroke="red" pointer-events="all" rx="11" ry="11"/><path fill="none" stroke="red" stroke-miterlimit="10" d="M 325 81 L 325 138.76" pointer-events="stroke"/><path fill="none" stroke="red" stroke-miterlimit="10" d="M 320.5 130.88 L 325 139.88 L 329.5 130.88" pointer-events="all"/><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 315 221 L 315 284.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 315 289.88 L 311.5 282.88 L 315 284.63 L 318.5 282.88 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="141" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:181px;margin-left:236px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Visit Filesystem view</div></div></div></foreignObject><text x="315" y="185" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Visit Filesystem view</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 235 621 L 215 621 L 215 481 L 228.63 481" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 233.88 481 L 226.88 484.5 L 228.63 481 L 226.88 477.5 Z" pointer-events="all"/><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 315 661 L 315 694.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 315 699.88 L 311.5 692.88 L 315 694.63 L 318.5 692.88 Z" 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style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">click Search button</div></div></div></foreignObject><text x="315" y="335" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">click Search button</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 395 481 L 513.63 481" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 518.88 481 L 511.88 484.5 L 513.63 481 L 511.88 477.5 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="441" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:481px;margin-left:236px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">enter query</div></div></div></foreignObject><text x="315" y="485" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">enter query</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 600 521 L 600 621 L 401.37 621" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 396.12 621 L 403.12 617.5 L 401.37 621 L 403.12 624.5 Z" pointer-events="all"/><rect width="160" height="80" x="520" y="441" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:481px;margin-left:521px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">search in DB</div></div></div></foreignObject><text x="600" y="485" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">search in DB</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 315 781 L 315 814.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 315 819.88 L 311.5 812.88 L 315 814.63 L 318.5 812.88 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="701" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:741px;margin-left:236px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">click on result path</div></div></div></foreignObject><text x="315" y="745" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">click on result path</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 315 901 L 315 924.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 315 929.88 L 311.5 922.88 L 315 924.63 L 318.5 922.88 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="821" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:861px;margin-left:236px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">show containing folder</div></div></div></foreignObject><text x="315" y="865" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">show containing folder</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 80 791 L 80 814.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 80 819.88 L 76.5 812.88 L 80 814.63 L 83.5 812.88 Z" pointer-events="all"/><rect width="160" height="80" x="0" y="711" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:751px;margin-left:1px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">download/ delete File</div></div></div></foreignObject><text x="80" y="755" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">download/ delete File</text></switch></g><ellipse cx="80" cy="836" fill="#000" stroke="red" pointer-events="all" rx="11" ry="11"/><ellipse cx="80" cy="836" fill="none" stroke="red" pointer-events="all" rx="15" ry="15"/><ellipse cx="315" cy="946" fill="#000" stroke="red" pointer-events="all" rx="11" ry="11"/><ellipse cx="315" cy="946" fill="none" stroke="red" pointer-events="all" rx="15" ry="15"/></g><switch><a target="_blank" transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems"><text x="50%" y="100%" font-size="10" text-anchor="middle">Viewer does not support full SVG 1.1</text></a></switch></svg>
\ No newline at end of file
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requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:481px;margin-left:521px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">search in DB</div></div></div></foreignObject><text x="600" y="485" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">search in DB</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 315 781 L 315 814.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 315 819.88 L 311.5 812.88 L 315 814.63 L 318.5 812.88 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="701" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g 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924.63 L 318.5 922.88 Z" pointer-events="all"/><rect width="160" height="80" x="235" y="821" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:861px;margin-left:236px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">show containing folder</div></div></div></foreignObject><text x="315" y="865" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">show containing folder</text></switch></g><path fill="none" stroke="#000" 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\ No newline at end of file
diff --git a/assets/diagrams/activity/upload.svg b/assets/diagrams/activity/upload.svg
index ee64925..b8eb166 100644
--- a/assets/diagrams/activity/upload.svg
+++ b/assets/diagrams/activity/upload.svg
@@ -1 +1 @@
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center;width:1px;height:1px;padding-top:463px;margin-left:275px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">yes</div></div></div></foreignObject><text x="275" y="467" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">yes</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 65 401 L 45 401 L 45 471 L 105 471 L 105 494.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 105 499.88 L 101.5 492.88 L 105 494.63 L 108.5 492.88 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:471px;margin-left:45px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">no</div></div></div></foreignObject><text x="45" y="474" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">no</text></switch></g><path fill="#fff" stroke="#000" stroke-miterlimit="10" d="M 105 361 L 145 401 L 105 441 L 65 401 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:78px;height:1px;padding-top:401px;margin-left:66px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">should overwrite/merge ?</div></div></div></foreignObject><text x="105" y="405" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">should overwr...</text></switch></g><path fill="none" stroke="#000" stroke-dasharray="2 6" stroke-miterlimit="10" stroke-width="2" d="M 520 1231 L 520 1" pointer-events="stroke"/><rect width="160" height="30" x="570" y="6" fill="none" stroke="none" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe flex-start;justify-content:unsafe flex-start;width:158px;height:1px;padding-top:13px;margin-left:572px"><div style="box-sizing:border-box;font-size:0;text-align:left"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal"><span style="color:#000;font-family:&quot;helvetica&quot;;font-size:12px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0;text-transform:none;word-spacing:0;display:inline;float:none">Backend Repo: /FileHandler</span></div></div></div></foreignObject><text x="572" y="25" fill="#000" font-family="Helvetica" font-size="12">Backend Repo: /FileHandler</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 650 501 L 650 621 L 466.37 621" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 461.12 621 L 468.12 617.5 L 466.37 621 L 468.12 624.5 Z" pointer-events="all"/><rect width="160" height="80" x="570" y="421" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:461px;margin-left:571px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Upload File</div></div></div></foreignObject><text x="650" y="465" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Upload File</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 380 661 L 380 694.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 380 699.88 L 376.5 692.88 L 380 694.63 L 383.5 692.88 Z" pointer-events="all"/><rect width="160" height="80" x="300" y="581" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:621px;margin-left:301px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Create DB entry</div></div></div></foreignObject><text x="380" y="625" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Create DB entry</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 650 781 L 650 811 L 166.37 811" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 161.12 811 L 168.12 807.5 L 166.37 811 L 168.12 814.5 Z" pointer-events="all"/><rect width="160" height="80" x="570" y="701" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:741px;margin-left:571px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">Store File</div></div></div></foreignObject><text x="650" y="745" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">Store File</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 420 741 L 495 741 L 563.63 741.16" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 568.88 741.17 L 561.87 744.66 L 563.63 741.16 L 561.89 737.66 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:741px;margin-left:495px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">yes</div></div></div></foreignObject><text x="495" y="744" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">yes</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 380 781 L 380 891 L 563.63 891" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 568.88 891 L 561.88 894.5 L 563.63 891 L 561.88 887.5 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:1px;height:1px;padding-top:891px;margin-left:420px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:11px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;background-color:#fff;white-space:nowrap">no</div></div></div></foreignObject><text x="420" y="894" fill="#000" font-family="Helvetica" font-size="11" text-anchor="middle">no</text></switch></g><path fill="#fff" stroke="#000" stroke-miterlimit="10" d="M 380 701 L 420 741 L 380 781 L 340 741 Z" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:78px;height:1px;padding-top:741px;margin-left:341px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">could create</div></div></div></foreignObject><text x="380" y="745" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">could create</text></switch></g><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 650 931 L 650 1021 L 171.37 1021" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 166.12 1021 L 173.12 1017.5 L 171.37 1021 L 173.12 1024.5 Z" pointer-events="all"/><rect width="160" height="80" x="570" y="851" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:891px;margin-left:571px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">delete File</div></div></div></foreignObject><text x="650" y="895" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">delete File</text></switch></g><ellipse cx="85" cy="1146" fill="#000" stroke="red" pointer-events="all" rx="11" ry="11"/><ellipse cx="85" cy="1146" fill="none" stroke="red" pointer-events="all" rx="15" ry="15"/><path fill="none" stroke="#000" stroke-miterlimit="10" d="M 85 1061 L 85 1124.63" pointer-events="stroke"/><path fill="#000" stroke="#000" stroke-miterlimit="10" d="M 85 1129.88 L 81.5 1122.88 L 85 1124.63 L 88.5 1122.88 Z" pointer-events="all"/><rect width="160" height="80" x="5" y="981" fill="#fff" stroke="#000" pointer-events="all" rx="12" ry="12"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow:visible;text-align:left" width="100%" height="100%" pointer-events="none" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display:flex;align-items:unsafe center;justify-content:unsafe center;width:158px;height:1px;padding-top:1021px;margin-left:6px"><div style="box-sizing:border-box;font-size:0;text-align:center"><div style="display:inline-block;font-size:12px;font-family:Helvetica;color:#000;line-height:1.2;pointer-events:all;white-space:normal;word-wrap:normal">show error message</div></div></div></foreignObject><text x="85" y="1025" fill="#000" font-family="Helvetica" font-size="12" text-anchor="middle">show error message</text></switch></g></g><switch><a target="_blank" transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems"><text x="50%" y="100%" font-size="10" text-anchor="middle"></text></a></switch></svg>
\ No newline at end of file
diff --git a/assets/diagrams/usecases.svg b/assets/diagrams/usecases.svg
index 6cd660b..13b6c4e 100644
--- a/assets/diagrams/usecases.svg
+++ b/assets/diagrams/usecases.svg
@@ -1 +1 @@
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diff --git a/pages/2_reviews.md b/pages/2_reviews.md
index 58c52bc..e67ce1a 100644
--- a/pages/2_reviews.md
+++ b/pages/2_reviews.md
@@ -79,3 +79,8 @@ Here you can find a list of all the reviews we have given for other projects:
 * [Socialyze](https://socialyze807275475.wordpress.com/2021/05/29/week-8-the-metrics-has-you/){:target="_blank"}
 * [Plandora](https://plandora51897980.wordpress.com/2021/05/31/week-17-metrics/){:target="_blank"}
 
+
+###### Week 18
+* [LittleBeasts](https://littlebeastsgame.wordpress.com/2021/06/08/2-9-installation/){:target="_blank"}
+* [Livepoll](https://blog.live-poll.de/week21/){:target="_blank"}
+