Merge "Snap to current page's relative position after dismissal." into...

Merge "Snap to current page's relative position after dismissal." into sc-v2-dev am: 35e09fe0 am: c762676c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15596523

Change-Id: Ic9c0551bc65df436009295ec1980b38eab9992fc