* use syntax highlighting for Guile attachments
http://localhost:1234/issue/36487#2

* do not make Debbugs queries (e.g. with status-with-cache)
use the local database / local mail cache instead

* enhance query input with JS
style known keywords to make it clearer what is a valid query keyword (like =date:=) and what isn’t

* allow multiple processes to access db
Throw to key `sqlite-error' with args `(sqlite-prepare 5 "database is locked")'.

* maintenance.git: redirect issues.guix.info and http variant to https://issues.guix.gnu.org

* MAYBE home page: present the newest issues first, and only open ones.
We currently show issues with recent activity (with the most recently touched issue first).  This seems fine.

* Mumi has no paging: It only presents one page of issues, but it
doesn't say how many are there in total nor does it page through all
other pages of issues.

* Add links to all tag queries (such as "easy")