Fix journal opening during dialog

Assets/Scripts/GameManager.cs

@@ -4,15 +4,20 @@ using UnityEngine;
 
 public class GameManager : MonoBehaviour
 {
-    // Start is called before the first frame update
-    void Start()
+    public static GameManager Instance;
+
+    public DialogueController dialogueController;
+    private void Awake()
     {
-        
+        if (Instance == null)
+        {
+            Instance = this;
+        }
+        else
+        {
+            Debug.LogWarning("There can only be one instance of the CharacterManager class");
+        }
     }
 
-    // Update is called once per frame
-    void Update()
-    {
-        
-    }
+
 }