Update auto-rotate strings/toggles for better accessibility

This change will update some strings for smart-auto-rotate and replace
the activity based switchbar with SettingsMainSwitchPreference. The
switchbar had to be replaced to allow the new text to appear above the main toggle.

Test: locally with flame and with resolver service enabled & disabled

Bug: 220182618
Change-Id: I4b60bf006bdde9e47b33a52c7719ec770caf5746
Merged-In: I4b60bf006bdde9e47b33a52c7719ec770caf5746