DOC standardize citations across the documentation

[romanlutz]

Describe the issue linked to the documentation

Right now, each class (and every example notebook) does something custom. Sometimes we mention the authors, sometimes we don't. Sometimes there's a link, sometimes there isn't. Sometimes we mention the paper title, sometimes we don't. We should err on the side of always including as much information as possible as people deserve credit for their fantastic contributions to open science.

This should happen as follows:

• add a bib file similar to https://github.com/fairlearn/fairlearn/blob/main/docs/refs.bib that holds the bibtex references and add a dev dependency on sphinxcontrib-bibtex. Migrate at least one file's citations to this system for testing purposes. This may require including something like .. footbibliography:: (or rather, the MyST equivalent of this ReST command).
• add a page with all works that we cite and link to it from the landing page
• replace all existing citations with this while making sure that author names, paper titles, any bibtex metadata, link to paper (and optionally repo/dataset location if available) are included!

Context on citing in jupyterbook: https://jupyterbook.org/en/stable/content/citations.html