Refactor ContactPreference

Moving it outside contacts.commons reduces dependency to legacy code. Also removed redundant implementations such as caching SharedPreferences (it is already cached), custom ListPreferences (standard ListPreferences already have what we want), and corrected preference storage location (allow standard ListPreferences to work)

TEST=TAP
Test: TAP
PiperOrigin-RevId: 202000393
Change-Id: I45374e610b3510784b5a4da92e5d8462cbfc92bb
35 files changed