Merge "Set blur on effect layer during app launch" into sc-dev am: ee4d67c52d am: e192b71d5b am: 463d4033bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14750658

Change-Id: I1f55f473167308a2b5401fc54bf24131b6c285f9