Track LauncherState, RecentsAnimation, resumed state for task bar in one place

TODO:
- Consider delaying animating task bar to stashed towards all apps state until user releasing their finger (tho in this change heuristic is applied for stashing and unstashing respectively)
- Further consolidate some animation logic

Bug: 204220602
Test: manual

Change-Id: I58b4d035fcf65a9f5c68e69c129eae95b89b1c4a