Checks if the mouse is in the keep going button, and if the won overlay is shown.

def _is_in_keep_going(self, x, y):
        """Checks if the mouse is in the keep going button, and if the won overlay is shown."""
        x1, y1, x2, y2 = self._keep_going
        return self.won == 1 and x1 <= x < x2 and y1 <= y < y2