feat: add note to language picker

frontend/src/components/account/LanguagePicker.tsx

@@ -1,9 +1,11 @@
 import { Select } from "@mantine/core";
 import { getCookie, setCookie } from "cookies-next";
 import { useState } from "react";
+import useTranslate from "../../hooks/useTranslate.hook";
 import { LOCALES } from "../../i18n/locales";
 
 const LanguagePicker = () => {
+  const t = useTranslate();
   const [selectedLanguage, setSelectedLanguage] = useState(
     getCookie("language")?.toString()
   );
@@ -15,6 +17,7 @@ const LanguagePicker = () => {
   return (
     <Select
       value={selectedLanguage}
+      description={t("account.card.language.description")}
       onChange={(value) => {
         setSelectedLanguage(value ?? "en");
         setCookie("language", value, {