Create new fragment which listen input device change, when input device
detached while pages show, it will exist correctly.
Bug: 399284521
Flag: com.android.settings.keyboard.keyboard_and_touchpad_a11y_new_page_enabled
Test: atest
packages/apps/Settings/tests/robotests/src/com/android/settings/inputmethod/
Change-Id: I3d6b9a4558866a8c4a3aa4fc30e500b8b6be90cd
This is part of feature for keyboard setting update, which allows gBoard to deep link to layout picker page.
document: go/deeplink_pk_layout_picker
Change-Id: I4277e175be7eed338f855e8144b5531c614e2c04
Bug: 318594345
Flag: com.android.settings.keyboard.keyboard_and_touchpad_a11y_new_page_enabled
Test: verified on Device
rename KeyboardSettingUtils to match more about usage.
Bug: 379594195
Test: atest SettingsRoboTests
Flag: NONE, rename file.
Change-Id: If978e7b56ecbdb0b571db5ff34553bbb20f976ee