Moved old webpage, app & client into .archive folder

.archive/client/app/components/Header.jsx

@@ -0,0 +1,11 @@
+import React from 'react'
+import { Link } from 'react-router-dom'
+
+// The Header creates links that can be used to navigate
+// between routes.
+const Header = () => (
+  <header>
+  </header>
+)
+
+export default Header