The main responsibility for updating stored ZenMode data when updated is the Settings page, which reloads mode data whenever any changes are detected. This change adds a process for that Settings page to then update the ZenMode data associated with all controllers on that page.
Flag: android.app.modes_ui
Bug: 335259054
Test: manual with toy implementations
Change-Id: Ie1692da54d962c90378085d8bd8573e5b93f8eb6