Animation for bubbles home gesture

Move bubbles expanded view up when user is performing the home gesture.
This gives immediate visual feedback to the user when swiping up to
collapse the expanded bubble.
Updating the expanded view collapse animation so that it works well
together with swipe up gesture.

Bug: 170163464
Test: atest PlatformScenarioTests:android.platform.test.scenario.sysui.bubble
Test: atest frameworks/base/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/bubbles
Change-Id: I834ef8de73dc4f9682583fa727ef42db21c19a7f