Update udl-list.json

twinBASIC UDL update,
twinBASIC UDL dark theme added

Author: sokinkeso

udl-list.json

@@ -3142,7 +3142,7 @@
             "display-name": "twinBASIC",
             "version": "2025-May-06",
             "repository": "",
-            "description": ""twinBASIC syntax highlighting",
+            "description": "twinBASIC syntax highlighting",
             "author": "sokinkeso",
             "homepage": "https://twinbasic.com/"
         },