* Check that the country setting is valid for selected region
* `SystemSaveGame.checkCountryCompatibility` -> `SystemSaveGame.getCountryCompatibility`
* SettingsFragmentPresenter.kt: Moved `checkCountryCompatibility` definition out of `addSystemSettings`
* SettingsFragmentPresenter.kt: Renamed `compat` value to `compatFlags` for better readability
* configure_system.ui: Corrected indentation
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Co-authored-by: OpenSauce04 <opensauce04@gmail.com>