Merge "Fix fast scroller issues / remove fast thumb access / fix wrong popup location" into sc-dev am: 56c33c3cb8 am: 428d3be35c am: 65951d9cc7

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

Change-Id: I0f41cd25c1648aa7dcc49d683f761c27b6fe7be4