Use own CDN to serve Bootstrap

Author: jcbrand

index.html

@@ -11,7 +11,7 @@
     <link rel="shortcut icon" type="image/ico" href="images/favicon.ico"/>
     <link type="text/css" rel="stylesheet" media="screen" href="/dist/converse.min.css" />
     <link type="text/css" rel="stylesheet" media="screen" href="/dist/website.min.css" />
-    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
+    <script src="https://cdn.conversejs.org/3rdparty/bootstrap-5.3.2.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
     <script src="src/website.js"></script>
 </head>
 <script type="application/ld+json">