Call for interest: migrate Cal Poly comment extension to JupyterLab core

[ellisonbg]

Problem

The Cal Poly Jupyter interns have created a JupyterLab extension for commenting on notebooks and text files. This integrates with the new Yjs data models. There is strong interest from the Jupyter user community to have commenting capabilities and we are evaluating if we should begin work to migrate the existing commenting extension into core. Here is the link to the existing repo:

https://github.com/jupytercalpoly/jupyterlab-comments

There would be a significant amount of work required to bring this extension over to core and get it ready for users. The purpose of this issue is as a call for interest to see who would be interested in working on this. Once we get critical mass, we can begin to discuss the next steps.

Proposed Solution

Create an informal working group of people who would like to help improve and potentially merge https://github.com/jupytercalpoly/jupyterlab-comments into JupyterLab core.

Additional context

There is an existing commenting extension in the JupyterLab GitHub org that is older, probably less capable and hasn't been maintained for a while. We would need to figure out what to do with this code base along the way.

[ellisonbg]

Opps, if you are interested in working on this, please leave your GitHub username as a comment on this issue.

[jasongrout]

#9885 was closed in deference to this, but I just want to call out that there is some interesting discussion there about implementation details, such as interaction with the RTC system.

[aiqc]

Mentioned in #12032