Fix navigation links in collection case details and enhance form handling for case detail updates

atlas/views.py

@@ -2346,7 +2346,18 @@ def collection_case_details(request, exam_id, case_id):
 
     collection = case_detail.collection
 
-    form = CaseDetailForm(instance=case_detail)
+    if request.method == "POST":
+        form = CaseDetailForm(request.POST, instance=case_detail)
+        if form.is_valid():
+            form.save()
+            if request.htmx:
+                return HttpResponse("Saved")
+            return redirect(request.path)
+        else:
+            if request.htmx:
+                return HttpResponse("Invalid form", status=400)
+    else:
+        form = CaseDetailForm(instance=case_detail)
 
     case_number, case_count = collection.get_index_of_case(
         case_detail.case, case_count=True