Make script work in Drupal

TODO check that it still works in the static layout...

agaric/js/script.js

-$( document ).ready(function() {
-
+(function ($) {
+$(document).ready(function(){
   // Open side navbar for handsets
   $('.navbar-burger').on('click tap', function(e) {
     $(this).toggleClass('is-active');
@@ -41,5 +41,5 @@ $( document ).ready(function() {
       }
     ]
   });
-
 });
+})(jQuery);