Fix formatting by adding a newline at the end of app.py

app.py

@@ -475,4 +475,5 @@ with gr.Blocks(css=CSS, theme=gr.themes.Soft(text_size=sizes.text_md)) as demo:
 
     next_p1.click(check_validity_and_llm, session_states, tabs)
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch()
+