Merge "Hide keyboard when thumb scroller is visible." into tm-dev am: d6d0dc3c am: 4e8f1298

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18819707



Change-Id: I6921d10e3f029fa630d2acb1fdd58799673bd38b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>