Add "all files" to the "add shortcuts" file picker

[DekosAnjo]

Description

Fix for #3199 that adds a "all files" option to the "add shortcuts" file picker as a workaround for a gnome bug

Fixes #3199

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.
Provide instructions so we can reproduce.

• Open the "add shortcuts" file picker

[fab-sonarqube]

SonarQube Quality Gate

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

[pablogila]

Thanks!

[github-actions]

Pylint result on modfied files:

************* Module bottles.frontend.views.bottle_details
bottles/frontend/views/bottle_details.py:50:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:52:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:116:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:118:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:119:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:348:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:350:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:505:0: W1405: Quote delimiter ' is inconsistent with the rest of the file (inconsistent-quotes)
bottles/frontend/views/bottle_details.py:24:0: E0611: No name 'Adw' in module 'gi.repository' (no-name-in-module)
bottles/frontend/views/bottle_details.py:154:12: W0105: String statement has no effect (pointless-string-statement)
bottles/frontend/views/bottle_details.py:173:4: R0913: Too many arguments (6/5) (too-many-arguments)
bottles/frontend/views/bottle_details.py:186:25: W0613: Unused argument 'a' (unused-argument)
bottles/frontend/views/bottle_details.py:186:28: W0613: Unused argument 'b' (unused-argument)
bottles/frontend/views/bottle_details.py:173:22: W0613: Unused argument 'drop_target' (unused-argument)
bottles/frontend/views/bottle_details.py:173:56: W0613: Unused argument 'x' (unused-argument)
bottles/frontend/views/bottle_details.py:173:59: W0613: Unused argument 'y' (unused-argument)
bottles/frontend/views/bottle_details.py:173:62: W0613: Unused argument 'user_data' (unused-argument)
bottles/frontend/views/bottle_details.py:195:23: W0613: Unused argument 'drop_target' (unused-argument)
bottles/frontend/views/bottle_details.py:195:36: W0613: Unused argument 'x' (unused-argument)
bottles/frontend/views/bottle_details.py:195:39: W0613: Unused argument 'y' (unused-argument)
bottles/frontend/views/bottle_details.py:199:23: W0613: Unused argument 'drop_target' (unused-argument)
bottles/frontend/views/bottle_details.py:239:18: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:343:31: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:354:30: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:365:41: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:396:29: W0613: Unused argument 'a' (unused-argument)
bottles/frontend/views/bottle_details.py:396:32: W0613: Unused argument 'b' (unused-argument)
bottles/frontend/views/bottle_details.py:373:29: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:373:37: W0613: Unused argument 'args' (unused-argument)
bottles/frontend/views/bottle_details.py:442:27: W0613: Unused argument 'error' (unused-argument)
bottles/frontend/views/bottle_details.py:426:23: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:474:26: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:490:31: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:520:37: W0613: Unused argument 'response_id' (unused-argument)
bottles/frontend/views/bottle_details.py:538:4: W0105: String statement has no effect (pointless-string-statement)
bottles/frontend/views/bottle_details.py:543:26: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:547:24: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:551:25: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:554:27: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:558:22: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:563:18: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:567:30: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:571:31: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:575:30: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:579:26: W0613: Unused argument 'widget' (unused-argument)
bottles/frontend/views/bottle_details.py:585:18: W0613: Unused argument 'result' (unused-argument)
bottles/frontend/views/bottle_details.py:585:31: W0613: Unused argument 'error' (unused-argument)
bottles/frontend/views/bottle_details.py:611:17: R1719: The if expression can be replaced with 'not test' (simplifiable-if-expression)