Replace the SlicePreference with Preference

The Settings' 2 panel did not support SlicePreference, since it
always open activity with NEW_TASK and it casues the settings can't
set new page at right side.

Bug: 270544054
Test: build pass. local test: the phone pair the buds with fastpair, and
then check the slice preferences.
atest BlockingPrefWithSliceControllerTest (pass)

Change-Id: I0e8abfd284492f04ab322a5bed13741fc6b25b34