Update app.py

app.py

@@ -55,6 +55,6 @@ gr.ChatInterface(
     undo_btn="↩ Undo",
     clear_btn="Clear (New chat)",
     stop_btn="Stop ▢",
-    height="800px"
+    height="800px",
     concurrency_limit=20,
 ).launch(show_api=False)