Ignore tap ouside for transient-hide task

Because with transient launch, launcher is moved to top when
animating recents animation. Then before the surface of transient
hide task disappears on screen, the tap outside may still be
triggered. Which will send another TO_FRONT transition
(app=CHANGE, recents=CLOSE).

This add the same condition as legacy recents did in
onPointerDownOutsideFocusLocked to skip handling the tap.

Also let RecentsTransitionHandler cancel the animation and restore
the state (hide recents, reorder app to top and show it) if the
unexpected TO_FRONT happens (e.g. setFocusedTask on hide task).

Bug: 278055698
Test: Launch an activity with a dialog.
      Swipe-up and tap screen quickly.
      Home is still visible.
Change-Id: I1d22cb7a391d71b0d5cc0fa57cd8303458a4434d