author: links: capitalize sourcehut
author: links: add sourcehut
create empty custom header

seems like jekyll does not have native support for include-if-exist
remove dummy favicon

originally added to prevent gitlab pages, when a page with access
control is present under the same namespace, redirects to auth when not
we have moved to pagessrht, where the problem does not exist.
css: comments: matrix: fix matrix.to button hiding on newer cactus
posts: bump arch-linux-install
ci: tweak html job name
ci: deploy to our pagessrht instance
footer: copyright: underline links
sass: follow bg selector: fix color
sass: follow bg selector: fix typo
sass: fix follow bg selector
sass: dim background on popups, unify impl
mobile: follow: bring back click-outside-to-close
sass: social share: do not hide text on narrow

it does fit
sass: page__related: remove a override
archive-single: remove one layer of unneeded div
remove rel="permalink"

weird custom rel usage without any obvious effect
git: ignore vendor assets
print: don't draw light/dark toggle