Update manifest.json

Author: rgantzos

manifest.json

@@ -2,8 +2,8 @@
   "name": "__MSG_extName__",
   "short_name": "__MSG_extName__",
   "manifest_version": 3,
-  "version": "3.0.0",
-  "version_name": "3.0.0-beta",
+  "version": "2.30.3",
+  "version_name": "2.30.3",
   "default_locale": "en",
   "description": "__MSG_extDescription__",
   "author": "rgantzos",