Normalize game architecture

assets/ui/game_fail.png

assets/ui/game_win.png

assets/ui/key.png

assets/ui/placeholder.png

dirname.png

fastlane/metadata/android/en-US/changelogs/30.txt

fastlane/metadata/android/fr-FR/changelogs/30.txt

icons/button_help.svg

icons/lang_fr.svg

icons/length_4.svg

icons/length_5.svg

icons/length_6.svg

icons/length_7.svg

icons/length_8.svg

lib/config/default_game_settings.dart

lib/config/default_global_settings.dart

lib/config/menu.dart

lib/config/theme.dart

lib/cubit/game_cubit.dart

lib/cubit/game_state.dart