Refactor score filtering logic in exam scores user template for consistent layout

anatomy/templates/anatomy/exam_scores_user.html

@@ -112,12 +112,12 @@
             $(document).ready(function () {
                 $("#hide-viewer").on('click', function(){ $('.viewer-block .viewer-body').toggle(); });
 
-                // Filter questions by score
+                // Filter questions by score using Bootstrap's d-none for consistent layout
                 $("#filter-score").on('change', function(){
                     const val = $(this).val();
                     $(".list-group-item[data-score]").each(function(){
                         const s = $(this).data('score');
-                        if(val === 'all' || String(s) === String(val)) $(this).show(); else $(this).hide();
+                        if(val === 'all' || String(s) === String(val)) $(this).removeClass('d-none'); else $(this).addClass('d-none');
                     });
                 });
 
@@ -147,7 +147,7 @@
                 });
 
             // auto-click first view button to populate viewer
-                const firstView = $(".view-question-button").first();
+                const firstView = $(".view-question-button:visible").first();
                 if(firstView.length){ firstView.click(); }
             });
         </script>