JupyterLite AI settings should have icon?





<img width="315" height="115" alt="Image" src="https://github.com/user-attachments/assets/09fac4b7-2782-4d27-bd16-3cf004ddd7d1" />


@jtpio @brichet Should JupyterLite AI settings should have icon? Like JupyterGIS setting has.


[Jupyternaut](https://github.com/jupyterlite/ai/blob/main/style/icons/jupyternaut-lite.svg) icon is the best.