Fix that accessibility floating menu did not remember tucked state when lock/unlock the phone.

Actions:
1) Add a new SharedPreference key to record the tucked state.
2) Add a new LiveData for the tucked state.

Bug: 251082969
Test: atest MenuAnimationControllerTest MenuViewLayerTest
Change-Id: I8e8ae6867b6ad72959de3f6bb92c913ae61286c2