Improve game architecture/conception

lib/cubit/settings_game_cubit.dart

lib/cubit/settings_game_state.dart

lib/cubit/settings_global_cubit.dart

lib/cubit/settings_global_state.dart

lib/data/fetch_data_helper.dart

lib/data/game_data.dart

lib/main.dart

lib/models/data/category.dart

lib/models/data/game_item.dart

lib/models/data/letter.dart

lib/models/game.dart

lib/models/game/game.dart

lib/models/settings_game.dart

lib/models/settings_global.dart

lib/provider/data.dart

lib/ui/painters/parameter_painter.dart

lib/ui/screens/game_page.dart

lib/ui/screens/page_about.dart

lib/ui/screens/page_game.dart

lib/ui/screens/page_settings.dart