Refactor exam review question template to support HTMX navigation and create a partial for question details

generic/views.py

@@ -1216,6 +1216,12 @@ class ExamViews(View, LoginRequiredMixin):
             "can_edit": self.check_user_edit_access(request.user, exam_id=pk),
         }
 
+        # If this is an HTMX request, return only the fragment so the client
+        # can swap it into the page. HTMX sends the HX-Request header which
+        # is available in Django as HTTP_HX_REQUEST in request.META.
+        if request.META.get("HTTP_HX_REQUEST") == "true":
+            return render(request, "generic/partials/exam_review_question_fragment.html", context)
+
         return render(request, "generic/exam_review_question.html", context)
 
     @method_decorator(login_required)