Merge "Make clear announcment for taskbar education." into tm-qpr-dev am: 601e0ff8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22146024



Change-Id: I17dcffb5e72b672fedd2d54bbee6f09f99a395dc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>