place scripts in index as template

Lab01/app/templates/register.tmpl

@@ -22,9 +22,8 @@
     <button onclick="registerUser()" class="btn btn-primary">Submit</button>
 </div>
 
-<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"
-        integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p"
-        crossorigin="anonymous"></script>
+
+{{template "scripts" .}}
 <script>
     function registerUser() {
         const username = document.getElementById("username").value;
@@ -42,4 +41,4 @@
     }
 </script>
 </body>
-</html>
+</html>