Attempt to improve initial page load by adding defer attribute to scripts, will attempt to add defer to inline scripts as well soon

templates/partials/topset.html

@@ -19,7 +19,7 @@
             </select>
         </div>
         <script>
-            te.Select.getOrCreateInstance(document.querySelector("#topset-exercise-select-{{ topset_id }}")).setValue("{{ exercise_id }}");
+            window.addEventListener('DOMContentLoaded', _ => te.Select.getOrCreateInstance(document.querySelector("#topset-exercise-select-{{ topset_id }}")).setValue("{{ exercise_id }}"));
         </script>
         {% endif %}
     </td>