This will fix a memory leak being caused by dangling listeners.
Test: locally with oriole, make RunSettingsRoboTests -j$(nproc) ROBOTEST_FILTER=AdaptiveSleepCameraStatePreferenceControllerTest,AdaptiveSleepPreferenceControllerTest
Bug: 245990072
Change-Id: I35eeedc3ece719f1f3baff6235cc5ac2d42fbba3
In Screen Timeout Settings, preferences should not be initialized in
onAttach() because the setting style hasn't been loaded yet. This change
defers the initialiaztion of those preferences so that they appear
correctly.
Test: manually tested.
Test: make RunSettingsRoboTests ROBOTEST_FILTER=com.android.settings.display
Bug: 183909540
Change-Id: I86cfe196549d709ed763faa004fff7b631365b1e