bugfix: fix the create_app indent

app.py

@@ -4162,8 +4162,8 @@ def create_app():
             inputs =[youtube_link],
             outputs = init_outputs
         )
-        app = gr.mount_gradio_app(app, demo, "/", server_name="0.0.0.0", server_port=7860, show_error=True)
-        return app
+    app = gr.mount_gradio_app(app, demo, "/", server_name="0.0.0.0", server_port=7860, show_error=True)
+    return app
 
 if __name__ == "__main__":
     import uvicorn