Vscode-jupyter: Add nbextensions support for Jupyter Notebooks

[qdlmcfresh]

Feature: Notebook Editor, Interactive Window, Python Editor cells

Description

Would be great to have support for nbextensions since that would fully replace a notebooks instance.

[rchiodo]

Thanks for the suggestion.

[pritam-dey3]

Any update on this issue?

[rchiodo]

I'd say this is iffy as far as even being possible. NBExtensions can both interact with the jupyter notebook and change the UI of the jupyter toolbar. Both of which are hard to adapt to VS code.

Once VS code ships https://github.com/microsoft/vscode/issues/91987 and we adapt to using it, there will likely be a VS code way to write extensions for notebooks.