feat(game): add mute

src/game/game.py

@@ -142,6 +142,10 @@ class Game:
         self._reset_game_state()
         self._initialize_field_and_tetromino()
 
+    def mute(self) -> None:
+        """Mute the game."""
+        self.landing_sound.set_volume(0)
+
     def _draw_grid(self) -> None:
         """Draw the grid on the game surface."""
         for col in range(1, CONFIG.game.columns):

src/game/main.py

@@ -54,6 +54,11 @@ class Main:
         pygame.quit()
         sys.exit()
 
+    def mute(self) -> None:
+        """Mute the game."""
+        self.music.set_volume(0)
+        self.game.mute()
+
     def _update_score(self, lines: int, score: int, level: int) -> None:
         """
         Update the game score.