docs: relicense to AGPL 3.0, update name to lowercase
fix: make placeholder lighter in tag input
feat: tag management thingy
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
feat: eye candy profile name button to settings
feat: remove login divider, add config option for oidc visual in login
feat: doc update, login page divider
feat: login and logout with oidc
docs: engine.go miniflux inspiration notice