Merge "Close open folders when pausing launcher." into tm-dev am: 52eaebead4 am: efa31cc5aa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17546438

Change-Id: I65773c113d2b3f14de6af4225ba372bc318b4860
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>