added footer component

frontend/src/components/Footer.tsx

@@ -0,0 +1,12 @@
+import React from "react";
+
+const Footer: React.FC = () => {
+  return (
+    <footer className="fixed bottom-0 left-0 text-sm w-full bg-slate-100 text-center py-2 border-t border-slate-200 z-50">
+      <p>Made with ❤️ by Theis Gaedigk - Jahrgang 2019</p>
+      <p>v1.1</p>
+    </footer>
+  );
+};
+
+export default Footer;