Merge "Hide keyboard when thumb scroller is visible." into tm-dev am: d6d0dc3c am: a95e5116

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



Change-Id: Ie6b938fcb5faebeea986950c39a20ff0ca513259
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>