refactor：Module加入执行优先顺序

app/modules/subtitle/__init__.py

@@ -40,6 +40,13 @@ class SubtitleModule(_ModuleBase):
         """
         return ModuleType.Other
 
+    @staticmethod
+    def get_priority() -> int:
+        """
+        获取模块优先级，数字越小优先级越高，只有同一接口下优先级才生效
+        """
+        return 0
+
     def init_setting(self) -> Tuple[str, Union[str, bool]]:
         pass