Don't draw debug system if it has faded out

Microoptimization yes

Author: Dobby233Liu

src/engine/game/debugsystem.lua

@@ -1321,6 +1321,10 @@ function DebugSystem:onWheelMoved(x, y)
 end
 
 function DebugSystem:draw()
+    if self.state == "IDLE" and self.menu_anim_timer >= 1 then
+        return
+    end
+
     love.graphics.setFont(self.font)
     Draw.setColor(1, 1, 1, 1)