feat: added "menu" panic button

This avoids restarting the game when encountering an unknown issue.

Addons/Helper.cs

@@ -1,7 +1,11 @@
 using System;
 using System.IO;
+using GB.Core;
+using GB.Networking.Utils;
+using GB.Platform.Lobby;
 using UnityEngine;
 using UnityEngine.Analytics;
+using UnityEngine.SceneManagement;
 
 namespace GBSU.Addons;
 public class Helper
@@ -83,4 +87,32 @@ public class Helper
             Plugin.Log.LogInfo("Set custom rotation config path at " + GameConfigPath);
         }
     }
+
+    public static void SwitchToMenu()
+    {
+        if (hosting)
+        {
+            GBSUGui.PushError("Please press the Stop server button instead!");
+        }
+        else
+        {
+            // uhm, time to panic!
+
+            // let's begin by disconnecting if theres an active connection
+            try
+            {
+                GBNetUtils.DisconnectSelf(false);
+            }
+            catch (Exception e)
+            {
+                Plugin.Log.LogWarning("Couldn't disconnect from server:\n" + e);
+            }
+
+            // go back to main menu
+            SceneManager.LoadScene(Global.MENU_SCENE_NAME);
+
+            // make sure our lobby state is menu
+            LobbyManager.Instance.LobbyStates.SelfState = LobbyState.Game.Menu;
+        }
+    }
 }