Using IHomeTransitionListener for listening for Launcher state when taskbar recreates

IHomeTransitionListener was only used when the visibility state changes, but not
when the taskbar is recreated during rotation. Instead we create a static listener
to keep track of current home visibility state

Bug: 331947346
Bug: 331947116
Flag: aconfig use_activity_overlay staging
Test: Manual
Change-Id: Icf613f7fc4f78e3f76a600202687b069d53a16dd
7 files changed