Update KeyboardQuickSwitch for TAPL testing

- Added a res id to KeyboardQuickSwitchView for TAPL testing
- Updated KeyboardQuickSwitch focus and scroll initialization
- Logging KeyEvents for TAPL testing
- Updated scrolling logic to wait for initial layout
- Fixed activity leak in KeyboardQuickSwitchViewController

Flag: ENABLE_KEYBOARD_QUICK_SWITCH
Bug: 267520665
Test: TaplTestsKeyboardQuickSwitch
Change-Id: I1d45d948c0e185504d994f7ef1d34f173c2243a9