- update eslint and related dependencies, `eslint-plugin-unicorn` to v72
with new rules enabled
- remove `eslint-plugin-sonarjs` (mostly obsolete or slow rules)
- extract shared eslint args into `ESLINT_ARGS` make variable
- rewrite ignore patterns in `eslint.json.config.ts` as explicit
root-relative paths: add `data` (local server data failed `lint-json`),
drop `node_modules` (ignored by default)
- fix a broken link in `CONTRIBUTING.md` (discovered during markdown
linting with eslint, but decided to not add that yet)
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
1. remove useless files like "backport.go", "update_dependencies.sh"
2. remove outdated "init" scripts, only keep one in sysvinit, gentoo dir
is also kept because it still uses openrc
3. move "service" related config and scripts into "service" directory
