Merge branch '21-normalize-game-architecture' into 'master'

README.md

android/gradle.properties

assets/translations/en.json

assets/translations/fr.json

assets/ui/button_back.png

assets/ui/button_delete_saved_game.png

assets/ui/button_resume_game.png

assets/ui/button_start.png

assets/ui/game_fail.png

assets/ui/game_win.png

assets/ui/placeholder.png

fastlane/metadata/android/en-US/changelogs/19.txt

fastlane/metadata/android/fr-FR/changelogs/19.txt

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

lib/cubit/settings_game_cubit.dart