fix: add generic favicon link

feat: add custom 404 page and clean up macros

fix: fix feed url to serve atom.xml

feat: add link to Mastodon profile

fix: typo in footer

fix: add seperator before links in about page

fix: fix bug in syntax style generation

fix: improve color scheme

fix: rename pgp key to something easier to type

fix: update gpg key

fix: update matrix link

build: migrate to docker swarm

feat: add Matrix URI and remove IRC handle

feat: add sshr and proxyr

feat: wrote about page and improved styles

feat: add dotfiles and fix taxonomy pages

feat: implement project listing and taxonomies

refactor: add header links and fix macro bug

fix: adjust margins around body

fix: improve header flex layout on small viewports