Use default demo.launch() (HF handles host/port)

app.py

@@ -338,4 +338,4 @@ Library on [PyPI](https://pypi.org/project/eegdash/).
 
 
 if __name__ == "__main__":
-    demo.launch(server_name="0.0.0.0", server_port=int(os.environ.get("PORT", 7860)))
+    demo.launch()