WCAG AAA guidelines encourage limiting text to 80 chars. Unlike A and
AA, the AAA level is more of a list of suggestions than a requirement.
Most other studies seem to indicate 70 is a good minimum but 100 is a
bit excessive.
"ch" units are broken on NetSurf, so I went with the closest "em"
approximation (since I already use "em" everywhere else).
All pages should now look good on screens 230px wide (DPR=1), inc. most
feature-phones running e.g. KaiOS.
Add borders to images so they look distinct from the surrounding page.
This requires making <nav> *not* display inline except for the
unstyled-list navlinks. This should also do a better job at appeasing
reader modes.
For the same reason, also make one link a citation
Statically grab and include webmentions during Hugo builds, no JS
involved. Hugo supports making web requests and parsing the resulting
JSON, so there was no need to use an external program either.
