Update to add endpoint support

Trying to see if endpoint support is possible

app.py

@@ -263,4 +263,4 @@ with gr.Blocks(css="style.css") as demo:
     )
 
 if __name__ == "__main__":
-    demo.queue(max_size=20).launch()
+    demo.queue(max_size=20).launch(enable_on_external_startup=True)