Merge "TaskMenu in overview UI polish" into sc-dev am: b74b9d2966 am: 60aa661a0f am: a66955d335

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14604156

Change-Id: I074b42ba20c38f3ae0e985847ab0b88315c22342