Refactor Footer and update copyright year

js/components/Footer.js

@@ -1,19 +1,30 @@
-
-
 export function Footer() {
     return (
         <footer className="footer mt-5 bg-dark text-light">
             <div className="container py-3">
                 <div className="row">
                     <div className="col-md-6 text-center">
-                        &copy; 2018 turnie.re &middot;
+                        <Copyright/> &middot; <Privacy/> &middot; <Imprint/>
-                        <a className="text-white" href="/privacy"> Datenschutzerklärung </a>
-                        &middot;
-                        <a className="text-white" href="/imprint"> Impressum</a>
                     </div>
-                    <div className="col-md-6 text-center"><a href="#" className="text-white">zurück nach oben</a></div>
+                    <div className="col-md-6 text-center"><MoveToTop/></div>
                 </div>
             </div>
         </footer>
     );
 }
+
+function Copyright() {
+    return <span>&copy; 2019 turnie.re</span>;
+}
+
+function Privacy() {
+    return <a className="text-white" href="/privacy">Datenschutzerklärung</a>;
+}
+
+function Imprint() {
+    return <a className="text-white" href="/imprint">Impressum</a>;
+}
+
+function MoveToTop() {
+    return <a href="#" className="text-white">zurück nach oben</a>;
+}