bug fix

A little bug were hidden under the hood !
I found that with re organization I forgot to change this line to the new systel so if you tried to quit the game by clicking the red cross, it would make the whole game crash.

core.py

@@ -261,7 +261,7 @@ class Game:
                     elif self.lastMove == "-Y":
                         self.picCoordinates = playerAnimation('noneUp', self.gender)
                 if event.type == pg.QUIT:
-                    self.pause()
+                    self.changeMenu("pause")
         # ========================================== PAUSE SCREEN ==================================================== #
         if self.state == 'pause':
             for event in pg.event.get():