Actually handle the sound parameter

gui.py

@@ -2111,6 +2111,7 @@ class GUIManager:
     def grab_attention(self, *, sound: bool = True):
         self.tray.restore()
         self._root.focus_force()
+        if sound:
             self._root.bell()
 
     def set_games(self, games: abc.Iterable[Game]) -> None: