Merge "Extract unfold classes to a separate library" into tm-qpr-dev am: 847affd1 am: eff905ce

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18287508



Change-Id: I8cfea8871d066790f725ceea5c5454ec8efa34c5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>