Remember column sorted by of the "Pull Requests You Participate In" table
The table is sorted by PR Id by default every time the page reloads.
The table remembers the column sorted by, alternatively a user could specify this in his preferences.
Having to review a lot of PRs that change frequently, maybe lay dormant for a while, sorting by "Last Update" column is much more conventient. So one can just go work from the top of the list, aka start with what has been updated recently. Sorting by "Last Updated" takes a bit, as one has to click the header two times to get the newest PRs on top.