Split settingslib_main_switch

From settingslib_main_switch_bar.

This cl itself is no-op.

Bug: 306658346
Test: m RunSettingsLibRoboTests ROBOTEST_FILTER=".*MainSwitchBarTest"
Test: Run AdExtServicesApkUISettingsGaOtaTests
Change-Id: Ic8798fa3f595010cd051d4b1929689273bc18fc2
5 files changed