Added delimiter between download button and submit button

app.py

@@ -868,6 +868,10 @@ def gradio_app():
                         visible=False,
                     )
                     
+                    # delimiter
+                    with gr.Row():
+                        pass
+                    
                     submission_btn_yes = gr.Button(value='Submit model', interactive=False, visible=False)
                     submission_btn_no = gr.Button(value='Reverse process', interactive=False, visible=False)