replace the flutter project with a gradle/compose android app:
- nix flake dev shell (jdk21, android sdk 35, build-tools 37, gradle)
- material3 app with a placeholder screen
- roborazzi/robolectric screenshot tests with one golden
- carry over the existing launcher/notification assets
* upgrade RN to 0.67-rc.6
upgrade react-native-reanimated to 2.3.1
debug and release building/working
* update to RN stable 0.67
* yarn upgrade
also use xmldom builtin types
* ignore ndk dir for linting
* upgrade types (RN 0.67 not out yet)
* remove deprecated rule
* actually i like that one, keep for now
* update licenses
* upgrade RN types and use builtin dep
* upgrade RN 0.67.1
austinried