Merge "Polish home-key from split to pip transition" into udc-dev am: ca08d75e am: 93551e94

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23833485



Change-Id: I0a6ef4eee4dfc6244b5ee4a7716c1e625923d4b8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>