refactor: added code for displaying current lanuage in header

src/js/footer/displayCurrentLang/index.js

@@ -0,0 +1,16 @@
+document.addEventListener("DOMContentLoaded", function () {
+  let currentLocaleElement = document.querySelector(
+    ".locale > .new-navbar_dropdown-link.w--current"
+  );
+  if (currentLocaleElement) {
+    let currentLocaleIsoCode = currentLocaleElement.getAttribute("hreflang");
+    let currentLocaleIsoCodeTexts = document.querySelectorAll(
+      ".current-locale-iso-code"
+    );
+    if (currentLocaleIsoCode && currentLocaleIsoCodeTexts.length) {
+      for (let currentLocaleIsoCodeText of currentLocaleIsoCodeTexts) {
+        currentLocaleIsoCodeText.innerText = currentLocaleIsoCode;
+      }
+    }
+  }
+});