Update and fix sentry

Author: Ives van Hoorne

packages/app/src/app/index.html

@@ -28,6 +28,8 @@
 
   <title>CodeSandbox</title>
 
+  <script src="https://cdn.ravenjs.com/3.21.0/raven.min.js" crossorigin="anonymous"></script>
+
   <!-- AMD Loader for Monaco -->
   <link data-name="vs/editor/editor.main" rel="stylesheet" href="/public/vs/editor/editor.main.css">
   <script src="/public/vs/loader.js"></script>
@@ -54,7 +56,6 @@
     })(window, document, 'script', 'dataLayer', 'GTM-T3L6RFK');
   </script>
   <!-- End Google Tag Manager -->
-  <script src="https://cdn.ravenjs.com/3.17.0/raven.min.js" crossorigin="anonymous"></script>
   <!-- <script async src="//cdn.headwayapp.co/widget.js"></script> -->
 
   <script async rel="prefetch" src="https://js.stripe.com/v3/"></script>