Add Verena's Kaggle exploration notebook to the monorepo

[tschaffter]

See #1221 for background information.

[vpchung]

I am unable to successfully launch Jupyter notebook:

Following the Preview in #1221 , the commands I used were:

$ nx prepare-python openchallenges-notebook
$ nx serve openchallenges-notebook

I initially thought it was maybe due to the recent change to the config server, so I tried adding PORT=8888 to my .env but to no avail. Then I looked up the Fail to get yarn configuration. Unknown Syntax Error: Extraneous positional argument ("list"). error message and came across this issued bug from July 2022. Based on some of the comments, yarn 3 is not yet supported and we are currently using v3.3.0.

@tschaffter did you happen to come across this error back when you first added the notebook a month ago?

[tschaffter]

I also bumped into this issue when starting the notebook. I can still access JupyerLab.

[vpchung]

@tschaffter ahh, interesting turn of events. When I first launched the project, I could not access localhost:8888. But now I'm able to 🙃