Charts rendering are different than chartjs

[omidb]

Hi, this is different with the documents:

private val MainMenu = ReactComponentB[Props]("MainMenu")
    .stateless
    .backend(new Backend(_))
    .render((P, _, B) => {
    <.ul(bss.navbar)(
      // build a list of menu items
      for (item <- menuItems) yield {
        <.li((P.activeLocation == item.location) ?= (^.className := "active"),
          MainRouter.routerLink(item.location)(item.icon, " ", item.label(P))
        )
      }
    )
  })
    .componentDidMount(_.backend.mounted())
    .build

would be nice if you update the book.