Update SettingsPreferenceMetadata fields and flag builders

- Remove breadcrumbs from public API based on feedback
- Rename write sensitivity field to indicate a preference of that category can only be modified via deeplink rather than expect a pre-prompt
- Properly annotate Builder classes to be Flagged APIs

Bug: 378674489
Flag: com.android.settingslib.flags.settings_catalyst
Test: unit tests
Change-Id: I270f49c02e7f3dcd7dc050bf088035ad6352ecb6