Unify menu labels, centralize hoster URL normalization, and add auto-update toggle

addon/plugins/topstreamfilm_plugin.py

@@ -20,7 +20,7 @@ import os
 import re
 import json
 from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional
-from urllib.parse import urlencode, urljoin
+from urllib.parse import urljoin
 
 try:  # pragma: no cover - optional dependency
     import requests