Merge "Check if mRecentsAnimationController is null before switching to screenshot" into sc-dev am: 5465527e16 am: 7c4ad155fc am: c378347e4d

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

Change-Id: Ief034048141a46eb58578748fccb028b362817f2