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: I4074f76d60524d37c28408ea5744bde8bb790cbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>