_isnotebook() does not recognise JupyterLite #166

Likely smell. Worth checking out.

base/imageio.py _isnotebook() only matches a shell class named Shell (Colab) or ZMQInteractiveShell. It has no JupyterLite check; RTB added sys.platform == "emscripten". If the Pyodide shell has another name, Camera takes the desktop branch of its image-plane reuse in the browser. I have not checked what get_ipython().__class__.__name__ is in the MVTB Lite site.

RTB, MVTB and bdsim each have their own copy of this check. rai-opensource/spatialmath-python#271 adds environment() and isnotebook() to spatialmath.base, covering terminal, IPython, Jupyter, Colab and JupyterLite. Once it is released, this could use it.