tree b2a67f91ba1770d379b29c00bbe84d69b407e949
parent 5839ffa71bf3087503da3cade6063d1192538bdc
author Ats Jenk <atsjenk@google.com> 1676503543 -0800
committer Ats Jenk <atsjenk@google.com> 1676681327 -0800

Add empty view to desktop tile in overview

Show an empty view when there are no tasks on the desktop.

Bug: 267326725
Test: have a fullscreen task, open overview, observe empty view for
  desktop tile
Test: have a desktop task, open overview, observe desktop task thumbnail
  is shown in overview and empty view is hidden

Change-Id: Ifb6d96d42bf602e9cc9e397efc0e07e2accdf16b