Add link to user's recent edit groups on individual edit group pages

I often face a situation that when I'm at an individual edit group page I want to see what other edit groups the user has done but the there is no such link on the page. Currently the username link leads to Wikidata user page.

Either we could add a completely new link somewhere on the page, or just change the current username link to `https://editgroups.toolforge.org/?user=username`.