Use modern stylesheet selector (#15962)

shared/lib/switch-direction.js

@@ -9,17 +9,17 @@ const switchDirection = async (direction) => {
     // eslint-disable-next-line no-param-reassign
     direction = 'ltr';
   }
+
   let updatedLink;
-  Array.from(document.getElementsByTagName('link'))
+  [...document.querySelectorAll('link[rel=stylesheet]')].forEach((link) => {
-    .filter((link) => link.rel === 'stylesheet')
+    if (link.title === direction && link.disabled) {
-    .forEach((link) => {
+      link.disabled = false;
-      if (link.title === direction && link.disabled) {
+      updatedLink = link;
-        link.disabled = false;
+    } else if (link.title !== direction && !link.disabled) {
-        updatedLink = link;
+      link.disabled = true;
-      } else if (link.title !== direction && !link.disabled) {
+    }
-        link.disabled = true;
+  });
-      }
+
-    });
   if (updatedLink) {
     return new Promise((resolve, reject) => {
       updatedLink.onload = () => {