npx nextjs-routes doesn't read NextConfig

[sitch]

See: https://github.com/tatethurston/nextjs-routes/blob/main/src/cli.ts#L25

It should pull in the local config, like it does on the webpack hook so the i18n config gets properly typed

I've been getting weird false/positives locally since adding:

// package.json
{
  "scripts": {
    "prebuild": "npx nextjs-routes"
  }
}

[tatethurston]

Thanks @sitch this is a duplicate of #136