message: chore(site): remove Styled System reference from metadata description
diff: const siteMetadata = {
  title: "Chakra UI | Design System built with React",
  description:
  - "Simple, Modular and Accessible UI Components for your React Applications. Built with Styled System",
  + "Simple, Modular and Accessible UI Components for your React Applications.",
  author: "Chakra UI",
  siteUrl: "https://chakra-ui.com",
  repository: "https://github.com/chakra-ui/chakra-ui",
  