Deprecate and point to `eslint-config-standard-with-typescript`

As the maintainers of [`eslint-config-standard-with-typescript`](https://github.com/standard/eslint-config-standard-with-typescript) has no intent on maintaining `ts-standard` I think the best strategy would be to deprecate this package and recommend people to use `eslint-config-standard-with-typescript` directly instead.