Update linting to latest `standard` / `prettier`

[voxpelli]

This uses ESLint 8.x, the maintained eslint-plugin-n fork of eslint-plugin-node (which I co-maintain), latest eslint-config-standard (which I also co-maintain) and drops the no longer needed eslint-plugin-standard

See: https://github.com/eslint-community/eslint-plugin-n/issues/100