Merge "Animate scrolling grid into place when there is a gap between last tasks and clear all." into sc-v2-dev am: fb0eaf2bee am: 232acae2bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15478152

Change-Id: I607e7ab11956999f60deb6fb4509fd684d385d42