Theme fix

• Fix dublicate icon issue with date picker

iOS 16 compatibility

• Fix compatibility with Safari on iOS 16
• Deprecate application cache manifest

Fix Jsoup

Fixed to use new Jsoup due Vaadin 7.7.28 release

Fix AppCache issue with Firefox

• Use service worker, local storage aka PWA when using newer Firefox / Android versions

4.2.1

• Added support for service worker, local storage aka PWA when using newer Chrome / Android versions
• Fix path issue when deployed to Windows servers

Small fixes regarding production mode

Fixes NPE and another potential exception that can happen in production mode.