Merge "Align ClearAllButton to centre when the ENABLE_GRID_ONLY_OVERVIEW is enabled" into udc-qpr-dev am: 622a3eacb3 am: 5eb9aec29f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23639282

Change-Id: I9474e94c23c1c5a6ccfb7d73902ec0836f4f61f7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>