Merge "git-ignore transient files created by aidegen" into udc-qpr-dev am:...

Merge "git-ignore transient files created by aidegen" into udc-qpr-dev am: 2c457135 am: 5281a266

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23589816



Change-Id: I1c5bf55a914fc757bcd1ea467c8ddfafd4a7e594
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>