* Implement custom save locations for Android and Desktop
* Request write permission to save to external storage
* Fix race condition for custom saves/loads caused by autosaves
* Remove unnecessary WRITE_EXTERNAL_STORAGE permission for saving files
* Fix padding for custom save/load location buttons
* Use nullability checks as defined in coding style guide
* Use nullability checks as defined in coding style guide
* Use early return for readability
* Rename save/load completion callbacks for custom locations and implement error handling
* Bring Incas into the main game
(also changes slinger withdraw ability to inheritable)
* Update Nations.json
* Back button fix, ESC, and behaviour of them in popups
* ESC/Back now work if there's no exitEvent
* ESC/Back: JackRainy is right, exit prompt now cancellable with same key
* Reworked Notification service to remove Nullpointer crashes due to non-final static variables being null. Instead moved all state to Worker specific architecture. Also switched to Android based localization because core-based one can be unavailable to worker.
* Added missing blanks
* Added more internationalization
Added missing androidX declaration (neccessary for newer Gradle versions)
Updated Gradle for new Android Studio Version
* Optimization
* Removed missing translations error
* Add support for loading mods
* Move mod folder copying into its own function
* Only request permission to read storage, not write
* Only allow mods on KK+ (removes storage permission)
* Callback to exit the game by 'Back' button
* Prompt dialog for the game exit
* Additional strings for translations are generated
* Do not show exit prompt dialog twice
