improve retrieved document parsing

app.py

@@ -150,14 +150,17 @@ def retriever(query: str, selected_retriever: str):
             try:
                 idx = document.lower().index("abstract:")
                 title = document[:idx].replace('\n', ' ')
-                retrieved_document_titles = retrieved_document_titles + title + '\n'
+                retrieved_document_titles = retrieved_document_titles + title + ' ||| '
             except:
-                retrieved_document_titles = retrieved_document_titles + document + '\n'
+                retrieved_document_titles = retrieved_document_titles + document + ' ||| '
 
-        display_retrieved_documents = f"\nRetrieved Documents: \n{retrieved_document_titles}"
+        display_retrieved_documents = f" ||| Retrieved Documents: \n{retrieved_document_titles}"
 
         for chunk in display_retrieved_documents.split():
-            text += chunk + " "
+            if chunk == "|||":
+                text += chunk + "\n"
+            else:
+                text += chunk + " "
             time.sleep(0.05)
             # Add a blinking cursor to simulate typing
             placeholder.markdown(text + "▌")