Support for opaque types

[andreoss]

Can DeriveConfig work with opaque types?

opaque type Template = String

object Template:
  import zio.*
  import zio.config.magnolia.*

  private def compile(v: String): Template = ???
  def apply(v: String): Template           = compile(v)

  given DeriveConfig[Template] = DeriveConfig[String].map(Template(_)) // Infinite loop here