We should copy Android/local.properties to the correct location

[aabewhite]

I do not have ANDROID_HOME set, and most new users won't have this set. Any time I update settings.gradle.kts to point at my DerivedData folder and then open it in Android Studio to run the app from there (for debugging or Android-specific work), the first attempt fails. There is an error message that tells me to put local.properties into a certain folder within DerivedData. We should do this automatically as part of our build process