Update manifest.json

Author: rgantzos

manifest.json

@@ -2,8 +2,8 @@
   "name": "__MSG_extName__",
   "short_name": "ScratchTools",
   "manifest_version": 3,
-  "version": "3.2.0",
-  "version_name": "3.2.0-beta",
+  "version": "3.1.2",
+  "version_name": "3.1.2",
   "default_locale": "en",
   "description": "__MSG_extDescription__",
   "author": "rgantzos",
@@ -64,4 +64,4 @@
       "https://scratch.mit.edu/*"
     ]
   }
-}
+}