Expanded accessibility search terms

Items with new keywords:
-Accessibility
-Accessibility Menu
-Autoclick
-Live Caption
-Hearing Aids/Devices
-3-button navigation
-Touch & Hold
-Accessibility Timeout

Bug: 278091482
Test: Build SettingsGoogle, change your system language a few times, then check that the search bar responds to the new terms
Change-Id: Iddaf4f378b63f13141c1c52fbb4daa20f90a5ff8