Reduce surface placement of sync group

1. setReady may be called multiples times from
WindowOrganizerController#startTransition and
DisplayContent#executeAppTransition. If the state is the same,
there is no need to request traversal.

2. When collecting a change if the group is not ready, the
visibility, config, lifecycle events and setReady=true will
trigger traversal as well.

Bug: 260059642
Test: atest SyncEngineTests
Test: Start next activity and finish current activity.
      The slice of trace "finishActivity" should not contain
      "performSurfacePlacement".
Change-Id: I8cc0c70bb8c2da504cc53379ea107c13d8bdd197