set max_lines to 3 for longer prompts

increase max lines visible in text area for longer prompts

app.py

@@ -230,7 +230,7 @@ with block:
                 text = gr.Textbox(
                     label="Enter your prompt",
                     show_label=False,
-                    max_lines=1,
+                    max_lines=3,
                     placeholder="Enter your prompt",
                 ).style(
                     border=(True, False, True, True),