* Split app into core and app:phone
* Use global versionCode and versionName
* Clean up gradle dependencies
* Use string formatting inside getString function
* Move proguard file to app:phone
* Move app_navigation and BasePlayerActivity to app:phone
* Add buildTypes to core gradle and remove buildFeatures
* Add suffix core to core namespace
* Split code into 4 more modules: data, preferences, player:core and player:video
* Clean up some gradle files
* Clean up data gradle
* Remove duplicate Constants.kt
* Use AppPreferences in more places
* Split off strings
* Remove unused animations
* Make about_libraries strings non-translatable
* Move mpv assets to player:video module
* Make AppPreferences a Singleton
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