Merge branch '41-improve-game-architecture' into 'master'

lib/ui/screens/settings_page.dart

lib/ui/skeleton.dart

lib/ui/widgets/app_bar.dart

lib/ui/widgets/bottom_nav_bar.dart

lib/ui/widgets/button_game_start_new.dart

lib/ui/widgets/game/button_game_restart.dart

lib/ui/widgets/game/cell_interactive.dart

lib/ui/widgets/game/game.dart

lib/ui/widgets/game/game_board.dart

lib/ui/widgets/game/game_top_indicator.dart

lib/ui/widgets/game/indicator_top.dart

lib/ui/widgets/game/message_game_end.dart

lib/ui/widgets/game/select_color_bar.dart

lib/ui/widgets/global_app_bar.dart

lib/ui/widgets/helpers/app_titles.dart

lib/ui/widgets/helpers/header_app.dart

lib/ui/widgets/helpers/outlined_text_widget.dart

lib/ui/widgets/home/button_game_start_new.dart

lib/ui/widgets/parameters.dart

lib/ui/widgets/settings/theme_card.dart