Add fix for open close mobile arrow

index.js

@@ -124,6 +124,14 @@ function switchLang(lang, platform) {
         dropdownMenuMobile.classList.remove("show");
       }
     }
+
+    if (platform === "mobile") {
+      const mobArrow = document.querySelector(".chevron.mobile");
+  
+      if (mobArrow != null) {
+        mobArrow.classList.toggle("rotated");
+      }
+    }
 }
 
 function set_current_year() {