Merge "[Launcher] App grid support for reset (1/4)." into tm-qpr-dev am: 7729aa4cc6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21467322

Change-Id: I1973c0c5739a88fd1f859e4ca42c87b6bd2aa3c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>