Revert "Disable queue"

This reverts commit 2765a9933628bb21c1b8cd1820c6d18d606feba8.

main.py

@@ -150,7 +150,7 @@ def main():
         outputs=gr.Plot(label="Tree Crowns"),
     )
 
-    demo.queue(default_enabled=False).launch(server_name='0.0.0.0', debug=True)
+    demo.launch(server_name='0.0.0.0', debug=True)
 
 if __name__ == "__main__":
     main()