public void Draw(LocalizationManager manager)
 {
     word = EditorGUILayout.TextField("Word:", word);
     if (GUILayout.Button("ADD"))
     {
         if (!manager.AddWord(word))
         {
             EditorUtility.DisplayDialog("Keyword Exists", "This keyword already exists", "OK");
         }
         else
         {
             EditorUtility.SetDirty(manager);
         }
     }
 }