Add logging and toasts

src/main/resources/templates/admin.html

@@ -179,6 +179,7 @@
     const broadcaster = /*[[${broadcaster}]]*/ '';
     const username = /*[[${username}]]*/ '';
 </script>
+<script src="/js/toast.js"></script>
 <script src="/js/admin.js"></script>
 </body>
 </html>