[16KB] use 16kb-compatible fork of react-native-mmkv (#9150)
* use 16kb-compatible fork of react-native-mmkv
* avoid using package alias
* specify ndk version
* Revert "specify ndk version"
This reverts commit 577393518e67ee59028b0c775536f53605dba6d4.
* add compiler flags to mmkv build (bump version)
* move fork to bsky repo/npm org