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: Ic3cbdfd41ca1dfce10e35b6bcec579aa8d47eb95