Got rid of index.html and unused files/folders

Taskfile.yml

build/devmode.config.yaml

frontend/bun.lockb

frontend/index.html

frontend/package-lock.json

frontend/package.json

frontend/postcss.config.js

frontend/public/resources/clubs.json

frontend/public/resources/nations.json

frontend/public/resources/regions.json

frontend/public/style.css

frontend/tailwind.config.js