Refactor show respondents buttons for improved readability and maintainability

anatomy/templates/anatomy/partials/exam_review_question_responses_fragment.html

@@ -63,7 +63,7 @@
 // Fallback for environments where HTMX isn't active or the hx-* attributes don't trigger.
 // Attach a click handler to buttons with class .show-respondents-btn that will fetch
 // the fragment URL (from data-url) and replace the container content.
-(function(){
+    (function(){
         try {
             var els = document.querySelectorAll('.show-respondents-btn');
             els.forEach(function(btn){
@@ -86,5 +86,5 @@
         } catch (e) {
         // ignore
         }
-})();
+    })();
 </script>