5.x: add types for `config.build.current`

[cossssmin]

• Maizzle Version: 5.0.0-beta.18

config.build.current holds some path information about the template currently being processed, for example:

{
  path: {
    root: 'build_production',
    dir: 'build_production',
    base: 'transactional.html',
    ext: '.html',
    name: 'transactional'
  }
}

It would be useful to have types for this, for example when using config.build.current inside an event, for autocomplete:

export default {
  async afterTransformers({config}) {
    const template = config.build.current. // editor would suggest `name` here
  },
}