Add edit permission check for display set modal and update template

atlas/views.py

@@ -545,7 +545,12 @@ def case_displaysets_detail(request, pk):
 def case_displaysets_modal(request, pk):
     """Return HTML fragment for a CaseDisplaySet to be shown inside a modal."""
     displayset = get_object_or_404(CaseDisplaySet, pk=pk)
-    return render(request, 'atlas/case_displayset_modal.html', {'ds': displayset})
+    can_edit = False
+    try:
+        can_edit = displayset.case.check_user_can_edit(request.user)
+    except Exception:
+        can_edit = False
+    return render(request, 'atlas/case_displayset_modal.html', {'ds': displayset, 'can_edit': can_edit})
 
 def case_displaysets_delete(request, pk):
     try: