[RFE] Add trash to the ubuntu-dock

Status changed to 'Confirmed' because the bug affects multiple users.

For some people like me who want their desktop to be clean, I prefer the trash bin to be on the Dock. This also has the advantage of easy access to the trash bin without going to the desktop.

This is an extra-good idea given it would allow us to disable nautilus-desktop and thus avoid bug 1696621.

Upstream bug report: https://github.com/micheleg/dash-to-dock/issues/173

This bug was fixed in the package gnome-shell-extension-ubuntu-dock - 70~ubuntu1

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gnome-shell-extension-ubuntu-dock (70~ubuntu1) impish; urgency=medium

  [ Philipp Kitzberger ]
  * Add new setting: preview size scale

  [ Evan Welsh ]
  * Initial port to GNOME 40.
  * theming: Fix various theming issues
  * Fix showing app icon at the start
  * Use Graphene for indicator rendering.
  * Fix show apps button toggling.
  * Start fixing panel mode...
  * Fix drag and drop and panel mode.
  * Fix workspace scrolling.
  * Fix icon scaling and size changes.
  * Cleanup preferences.
  * More theming and style fixes
  * Convert stylesheet to SCSS.
  * Improve overview animation and styling.
  * Fix regression in panel mode padding.
  * Avoid errors if already tracking the dock
  * Make sassc the default sass compiler
  * Initial fixes for horizontal scrolling.
  * Initial fix for dynamic icon sizing...
  * dash: Fix separator in vertical mode.

  [ Marco Trevisan (Treviño) ]
  * New upstream pre-release (LP: #1912211, LP: #1903582, LP: #1847650)
  * prefs: Port code for the initial size request
  * dash: Do not try to use an invalid value of dragPlaceholderPos
  * cleanup: Remove the unused InjectionsHandler instances
  * utils: Don't store the InjectedFunction on InjectionsHandler
  * utils: Modernize BasicHandler making it possible to use non-array arguments
  * cleanup: Connect to signals with non-array arguments when possible
  * BasicHandler: Support auto-destruction when using a parent Object
  * docking: Avoid recursion on _prepareMainDash()
  * utils: Add PropertyInjectionsHandler to manage property overrides
  * cleanup: Use PropertyInjectionsHandler
  * Utils: Pass the original function to InjectionsHandler callback
  * docking: Replace DashSpacer by overriding ControlsManagerLayout logic
  * docking: Always show the thumbnails box in vertical mode
  * Utils: Add class to inject virtual functions
  * docking: Replace WorkspaceBackground allocation code taking care of the dock
  * docking: Also ignore allocation requests on the original dash
  * Settings: Fix dock size scale selector
  * prefs: Disable monitor selection combo when multi-monitor is enabled
  * theming: Properly parse color from string and set its alpha value
  * theming: Do not try to set the background style with no style
  * prefs: Support running as a standalone application
  * prefs: Use Mutter DBus API to manage per-monitors configuration
  * docking: Properly handle top-positioned dock
  * docking: Use implicit properties features for slide-x
  * docking: Adapt dash(es) startup animation effect to our positioning
  * docking: Do not show the dash before startup animation has completed
  * docking: Use workarea-based allocation in ControlsManagerLayout and
    WorkspaceBackground
  * docking: Adjust overview with vertical auto-hide dock
  * docking: Adjust the AllWorkspaceBox size in secondary monitors
  * docking: Keep cached settings values used during allocation
  * appIcons: Move logic for computing the focused / running state here
  * dash: Fix ensureActorVisibleInScrollView as per upstream changes
  * cleanup: Modernize the code ensureActorVisibleIn...