Merge "Add a hint to align changes between taskbar and divider bar" into udc-dev am: 20957363 am: a824567e am: 10d035e7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23726783



Change-Id: I81827be5c1dc585702231c90c9c3a021ea129603
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>