Merge "Persist prediction cache on every update" into rvc-dev am: 7f1f8030...

Merge "Persist prediction cache on every update" into rvc-dev am: 7f1f8030 am: 53d65ac8 am: 0444a737 am: 42f8b7d9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/12077951

Change-Id: I25680876c9e86bfa91bf8e232f2d336ae3d459db