chore(ui): migrate more code to typescript

ui/src/Components/ValidationError/index.tsx

@@ -0,0 +1,12 @@
+import React from "react";
+
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { faExclamationCircle } from "@fortawesome/free-solid-svg-icons/faExclamationCircle";
+
+const ValidationError = () => (
+  <span className="text-danger">
+    <FontAwesomeIcon icon={faExclamationCircle} /> Required
+  </span>
+);
+
+export { ValidationError };