Update app.py

app.py

@@ -89,7 +89,7 @@ with gr.Blocks(theme=gr.themes.Base(), css="body {background-color: #f9fafb;}")
         generate_btn = gr.Button("🚀 Generate Image", variant="primary")
         output_image = gr.Image(type="filepath", label="🖼️ Generated Image", height=512)
 
-    generate_btn.click(
+    demo = generate_btn.click(
         fn=generate,
         inputs=[prompt_input, width_input, height_input, steps_input, seed_input, negative_input],
         outputs=output_image