Only refresh the launcher resume state when the task launch fails

- The previous call from TaskbarLauncherStateController caused a
  regression due to the inability for the code to distinguish
  Normal -> Background -> Normal when tapping on the bar area
  or from failing to launch a task, so both cases were triggering
  the resumed state to cycle and start an animation.  For now we can
  only handle the task-launch fail case.

Bug: 268448123
Fixes: 281966662
Test: Quickswitch to an activity that finishes when resumed
Change-Id: Ie4692dd85252540ff47633978c0e6e4adbb1bdd0