Add jupyter server api runtime

[opqrstuvcut]

I worked on implementing the ability to run the kernel of jupyter notebook and jupyter lab using the jupyter server api.

For example, suppose you are running jupyter lab as follows.

jupyter lab --ip=0.0.0.0 --port=8080 --NotebookApp.token='token' 

On neovim, run MagmaInit as follows.

:MagmaInit http://localhost:8080/lab?token=token 

[WhiteBlackGoose]

Looks interesting. There's already a feature though, which allows to connect to a running kernel via files:

jupyter console -f /tmp/file.json

and then :MagmaInit /tmp/file.json

But for some reason for me jupyter lab -f /tmp/file.json does not create this file, I guess it works differently. Never worked with jupyter lab

[opqrstuvcut]

Thanks for the review.
In my case, I found copying the json files on the server to local to be a hassle and also using jupyter console was not suitable for my operation.

[WhiteBlackGoose]

Well, it seems to be working fine 😄 . Will need some time though to decide for sure.

I'll need to expand the docs on the MagmaInit command later though