Server Performance boost

The Servers Performance was up to 100% percent. Tried to close threads not needed directly. now it is under 1%
(Threads stacking, when errors)

FlufflParty/Assets/Scripts/Start/StartHandler.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;
@@ -66,6 +67,8 @@ public class StartHandler : MonoBehaviour
         PlayerPrefs.Save();
 
         layout2.GetComponentInChildren<TMP_Text>().text = "Your room code is: \n" + code;
+        
+        stream.Close();
     }
 
     public void ButtonJoin()
@@ -152,4 +155,10 @@ public class StartHandler : MonoBehaviour
         layout0.SetActive(true);
         layout1.SetActive(false);
     }
+
+    private void OnApplicationQuit()
+    {
+        Stream stream = client.GetStream();
+        stream.Write(new byte[]{126, 0, 0, 0, 0, 0, 0, 0, 0});
+    }
 }