feat: error.tmpl

fix: abort if not logged in...

feat: link management!

fix: comments in TagsDelete

docs: relicense to AGPL 3.0, update name to lowercase

docs: remove old comment

fix: make placeholder lighter in tag input

feat: add dev docker-compose that runs the app with air

feat: tag management thingy

chore: update golang version in dockerfile

feat: a title / heading in settings

feat: tags link, username group width fix

feat: tab title, tailwind reformat, a todo

feat: some reworks and the first real interaction

* that interaction being the ability to change your display name

fix: bold display name

docs: update readme

feat: eye candy profile name button to settings

feat: make docker build cache deps builds

docs: update readme

feat: create user in db on login