Update app.py

app.py

@@ -69,7 +69,7 @@ with gr.Blocks(theme=gr.themes.Soft(), css="""
     }
 """) as app:
     with gr.Row(elem_id="row"):
-        text_input = gr.Textbox(label="Your message", placeholder="Type your message...", multiline=False, lines=1, max_lines=1, css_classes="flex-grow")
+        text_input = gr.Textbox(label="Your message", placeholder="Type your message...", lines=1, max_lines=1, css_classes="flex-grow")
         submit_btn = gr.Button(
             "send",
             variant="primary",