Merge "Show typeahead hint for app results" into sc-dev am: 565975ad89

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13700867

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8cd9f98f62b369768f22af18d66b7b1e0cc13298