rename KeyboardSettingUtils to match more about usage.
Bug: 379594195
Test: atest SettingsRoboTests
Flag: NONE, rename file.
Change-Id: If978e7b56ecbdb0b571db5ff34553bbb20f976ee
The option for entering page already has complete check condition.
Update the same check logic to isSeachable in setting page to hide
page when there's no touchpad connected.
Also apply check on trackpadTouchGesture.
Test: verify on device
Bug: 346497646
Flag: EXEMPT bugfix
Change-Id: I1730c7bd1fd2615dc1725ec0cc32293254e5b54a
1. basic trackpad settings
2. trackpad gestures settgins
3. use feature flag to control gesture settings page.
Bug: 247080509
Test: local test
Change-Id: Ia7184eeb7670e5d807cb553929679972e54d8c92
