Rename StatusBarTouchableRegionManager

Renaming to ShadeTouchableRegionManager to bring
it inline with its actual function.
The class manages the touchable region for the
shade.
FLAG: EXEMPT renaming file
Bug: b/380134385
Change-Id: Ibd3ecb4bfe5099f7f1012fcab754be59caa9c37d
9 files changed