Merge "Fix fast scroller issues / remove fast thumb access / fix wrong popup location" into sc-dev am: 56c33c3cb8 am: 46255ad68e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15331688

Change-Id: I7c495406a731dae0e18cdb1a2b5e3aad6379dc9d