Add Indentation to toc
Dear Developer & Maintainer:
It's great to see that jupyterlab also support toc extension now. I tried it but can't help getting to jupyter notebook when editing a long .ipynb.
The reason is that the indentation is not supported in jupyterlab toc, I found sometimes it's hard to look up the toc contents without this visual aids.
Please consider to add this functionality as it works pretty well in jupyter notebook.
I really agree and wish the developers would look at this as its been mentioned before, but in the meantime, you might find the workaround I described in https://github.com/jupyterlab/jupyterlab-toc/issues/82#issuecomment-491430683 useful.
This is definitely must have for comfortable orientation. I miss the feature too.
PR submitted to add ToC indentation: https://github.com/jupyterlab/jupyterlab-toc/pull/144