fix: not enable user_image_create_prefix by default

plugins/linkai/midjourney.py

@@ -96,7 +96,7 @@ class MJBot:
                 return TaskType.VARIATION
             elif cmd_list[0].lower() == f"{trigger_prefix}mjr":
                 return TaskType.RESET
-        elif context.type == ContextType.IMAGE_CREATE and self.config.get("use_image_create_prefix"):
+        elif context.type == ContextType.IMAGE_CREATE and self.config.get("use_image_create_prefix") and self.config.get("enabled"):
             return TaskType.GENERATE
 
     def process_mj_task(self, mj_type: TaskType, e_context: EventContext):