Handle touch on bubble bar while animating

This change handles touches on the bubble bar while the bubble bar is animating.
We now update the taskbar touch region during the animation to make the bubble bar touchable.
When the bubble bar is touched during the animation, we now cancel the animation and allow dragging or clicking to expand.

Demo: http://recall/-/bJtug1HhvXkkeA4MQvIaiP/gtGS6FCrygN5RKueFtPs5E

BubbleBarTest 100x run: https://android-build.corp.google.com/abtd/run/L42600030003675041
Note that in the abtd run above there's a flake but that's for a different test which I'll look into separately.

Flag: ACONFIG com.android.wm.shell.enable_bubble_bar DEVELOPMENT
Bug: 280605790
Bug: 280605846
Bug: 339066271
Fixes: 339244038
Test: See demo
Test: atest BubbleBarViewAnimatorTest
Change-Id: Icb8f4fa46ae4bb8c94ca931193d4a3cc49c5b718