Update manifest.json

Author: rgantzos

manifest.json

@@ -3,7 +3,7 @@
   "short_name": "ScratchTools",
   "manifest_version": 3,
   "version": "4.2.0",
-  "version_name": "4.2.0-beta",
+  "version_name": "4.2.0",
   "default_locale": "en",
   "description": "__MSG_extDescription__",
   "author": "rgantzos",
@@ -85,4 +85,4 @@
     "open_in_tab": true
   },
   "homepage_url": "https://scratchtools.app"
-}
+}