add return at end of streaming

app_modules/qa_chain.py

@@ -50,6 +50,8 @@ class TextIteratorStreamer(TextStreamer, StreamingStdOutCallbackHandler):
         """Put the new text in the queue. If the stream is ending, also put a stop signal in the queue."""
         self.text_queue.put(text, timeout=self.timeout)
         if stream_end:
+            print("\n")
+            self.text_queue.put("\n", timeout=self.timeout)
             self.text_queue.put(self.stop_signal, timeout=self.timeout)
 
     def on_llm_new_token(self, token: str, **kwargs: Any) -> None: