Merge "Check if mRecentsAnimationController is null before switching to screenshot" into sc-dev am: 5465527e16 am: 9c4dafcbd6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14490316

Change-Id: I37d92e05856639981769f9eb093e10b6a721589f