Merge "Add null check for recents when tapping on Taskbar icons" into tm-qpr-dev am: f51426a6ee am: f24a4d5208

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21701337

Change-Id: Iec21590a5cda006eefdaafc8c39811dd4ce53b32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>