Support non global jupyter command (configurable jupyter binary command)?

[Yuki-Inoue]

Hi, sorry if this is already supported and described in somewhere else.

Does the itypescript library support invoking jupyter with some other command than jupyter? Namely, I usually handle jupyter library installation by pipenv (fwiw, it's the local npm configuration/installation-ish library for python), and invoke jupyter via pipenv run jupyter.

I think it would be nice if jupyter command can be changed and can be configured e.g. as the command line argument.