Minor fix

app.py

@@ -73,6 +73,6 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         with gr.Column():
             chat_out = gr.Textbox(label="Response", type="text")
     
-    chat_clear_btn.click(inference, inputs=[text], outputs=[chat_out])
+    chat_submit_btn.click(inference, inputs=[text], outputs=[chat_out])
 
 demo.launch()