Minor UI refinement

tests/ui/test_sources_page.py

@@ -1,5 +1,6 @@
 """Tests for the sources page routes and Source model properties."""
 
+import re
 from datetime import UTC
 from datetime import datetime
 from pathlib import Path
@@ -198,6 +199,15 @@ class TestSourcesPageRendering:
         assert "page_one.png" in response.text
         assert "Source Document" in response.text
         assert "Stored Filename" not in response.text
+        assert re.search(
+            r'"name":"upload_name","label":"Upload Title".*'
+            r'"name":"page_number","label":"Page Number".*'
+            r'"name":"document_name","label":"Document Name".*'
+            r'"name":"job_source_status","label":"Status".*'
+            r'"name":"job_source_error_detail","label":"Error Detail"',
+            response.text,
+            re.DOTALL,
+        )
 
     @pytest.mark.asyncio
     async def test_sources_page_filters_to_document_context(self, app_client):