Author pages, links from author names, and a link for all authors

Now that Computable is truly multi-author, it would be nice to add a few more features related to that:

- [ ] We should make an author page for each author.
- [ ] Author names should be links to their author pages.
- [ ] References to "the Computable AI authors should be a link to a page with all authors.

Das Issue nennt drei Änderungen an der Website, aber keine Dateien oder Tests. Beginne damit, herauszufinden, wo Autorennamen und der Text „Computable AI authors“ gerendert werden, und überprüfe dann, ob jede Autorenseite und der Link zu allen Autoren erreichbar sind.

Vom Indexierungsmodell aus dem Issue-Text verfasst.