Update app.py

Deactivation of the API for security reasons that are obvious with a medical model, like this.

app.py

@@ -127,4 +127,4 @@ with gr.Blocks(css="style.css") as demo:
     chat_interface.render()
 
 if __name__ == "__main__":
-    demo.queue(max_size=20).launch()
+    demo.queue(max_size=20).launch(show_api=False)