DEVELOPMENT ENVIRONMENT

~liljamo/felu

ref: 80794a2467e2e6e5c48dc00e469e2dcdb3c190bd felu/cmd d---------
feat: serve dns on tcp too
chore: update mod name and dependencies
chore: implement changes from linters, update copyright years
feat: some logging improvements
refactor: backend -> api, move routers
refactor: move more to handlers
refactor: directory layout