feat: demo patches

* disclaimer at top
 * build script
 * umami for usage data

feat: show version number in settings

feat: tixe-input css class

feat: error.tmpl

feat: link management!

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

fix: bold 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

feat: whole page padding

docs: engine.go miniflux inspiration notice

feat: initial commit