* Add crashHandlingThread.
* Replace all uses of `thread` with `crashHandlingThread`.
* Add `postCrashHandlingRunnable`.
* Replace all uses of `Gdx.app.postRunnable` with `postCrashHandlingRunnable`.
* Remove CrashController and CrashReport; Strip down CrashReportSender to CrashReportSysInfo; Fold their functionality into CrashScreen.
* Typo in comments, rename `SafeCrashStage` to `CrashHandlingStage`.
* Tweak docs.
* Tweak docs, comments, text. Undo an accidentally recursive Replace All change.
* Remove replaced translations.
* More readable indentation handling in report template.
* 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
* 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
