Update Touchpad settings page to include mouse.

Make each setting conditionally available based on touchpad or mouse
connected to device.

Bug: 269100659
Test: TrackpadBottomPreferenceControllerTest
Test: TrackpadReverseScrollingPreferenceControllerTest
Test: TrackpadTapToClickPreferenceControllerTest
Test: TrackpadSettingsControllerTest
Flag: android.view.flags.enable_vector_cursor_a11y_settings
Change-Id: I601c29e20d69227779481c0a491256e36cfd268f