shadaj/slinky

Hey there; loving this library so far!

I am running into an issue with the react-router facade when trying to use activeClassName with NavLink. I'm not sure why, since I think I'm using it the same way NavLink is used for the sidebar on the Slinky docs site, and that works perfectly.

Minimal example of what isn't working for me:

    @react object Homepage {

      case class Props()

      val component = FunctionalComponent[Props] { props =>
        NavLink(
          to = "/about",
          activeClassName = Some("bar")
        )(
          className := "foo"
        )(
          "About"
        )
      }
    }

    ReactDOM.render(
      Router(
        history = History.createBrowserHistory()
      )(
        Switch(
          Route("/", Homepage.component, exact = true),
          Route("/about", Homepage.component),
          Route("*", Homepage.component)
        )
      ),
      container
    )

The link itself works, and goes to the /about page, but the bar class doesn't get added when /about is the current page.

Any thoughts on what I might be doing wrong would be greatly appreciated!