Prevent taskbar animation for contextual split from home

* Ideal animation TODO, this is to help
unblock for now.

Flag: Flag: ACONFIG com.android.wm.shell.enable_split_contextual DEVELOPMENT
Test: With flag on and off, from home, overview, all apps
Bug: 296351434
Change-Id: Ida743a881519796ed8ce3e5966aa708c84521c51
2 files changed