Refactor model ID handling and launch demo in app.py

app.py

@@ -201,4 +201,5 @@ with gr.Blocks() as demo:
     submit_btn.click(generate_both, inputs=[system_prompt, input_text, chatbot_a, chatbot_b, max_new_tokens, temperature, top_p, repetition_penalty], outputs=[chatbot_a, chatbot_b])
     clear_btn.click(clear, outputs=[chatbot_a, chatbot_b])
 
-demo.launch()
+if __name__ == "__main__":
+    demo.queue().launch()