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

lib/ui/screens/page_game.dart

lib/ui/screens/page_settings.dart

lib/ui/settings/settings_form.dart

lib/ui/settings/theme_card.dart

lib/ui/skeleton.dart

lib/ui/widgets/actions/button_delete_saved_game.dart

lib/ui/widgets/actions/button_game_quit.dart

lib/ui/widgets/actions/button_game_start_new.dart

lib/ui/widgets/actions/button_resume_saved_game.dart

lib/ui/widgets/game/game_board.dart

lib/ui/widgets/game/tile_widget.dart

lib/ui/widgets/global_app_bar.dart

lib/ui/widgets/helpers/app_header.dart

lib/utils/color_extensions.dart

pubspec.lock

pubspec.yaml

resources/app/build_application_resources.sh

resources/app/featureGraphic.svg

resources/app/icon.svg

resources/build_resources.sh