[fix] Fix copyright year

Author: tormozz48

src/components/copyright.js

@@ -2,13 +2,14 @@ import React from 'react';
 import Glyphicon from 'react-bootstrap/es/Glyphicon.js';
 
 export default () => {
+  const year = new Date().getFullYear();
   return (
     <div className="copyright">
       <a className="copyright__author" href="mailto:[email protected]">
         Andrey Kuznetsov
       </a>
       <Glyphicon glyph="copyright-mark"/>
-      <span className="copyright__year">2021</span>
+      <span className="copyright__year">{year}</span>
     </div>
   );
 };