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

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



Change-Id: If80e354c9e21be74828936960176353e0cea7179
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>