Merge changes I3e1f1342,I5493598e,I33e0db3a,I1a506d02 into main

* changes:
  DesktopTasksController: Let Wallpaper launchable on ext. displays.
  DesktopmodeWindowDecorViewModel: Use Display Context.
  DesktopTasksController: Create VisualIndicator w/ Display's Context.
  DesktopModeVisualIndicator: use taskInfo's display's bounds instead.