Merge "Fade navbar-handle in/out during TRANSITION_HANDLE_FADE" into tm-qpr-dev am: 2a20958f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22433065



Change-Id: Ib0a5f6cea3574815e0f6557c4171ba7d1efe8c6d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>