move generated stubs to separate directory, too messty

django-stubs-generated/contrib/sites/middleware.pyi

@@ -0,0 +1,11 @@
+from typing import Any, Optional
+
+from django.http.request import HttpRequest
+from django.utils.deprecation import MiddlewareMixin
+
+from .shortcuts import get_current_site
+
+
+class CurrentSiteMiddleware(MiddlewareMixin):
+    get_response: None
+    def process_request(self, request: HttpRequest) -> None: ...