feat(client): add language selector, language detector and privacy/tos pages

client/wrappers/LocaleWrapper.tsx

@@ -1,4 +1,26 @@
+import { useRouter } from 'next/router';
+import { useEffect } from 'react';
+
+import { useAppSelector } from '@/store/hooks';
+
 const LocaleWrapper: React.FC = ({ children }) => {
+  const router = useRouter();
+
+  const language = useAppSelector((state) => state.build.language);
+
+  useEffect(() => {
+    if (!language) return;
+
+    const { code } = language;
+    const { pathname, asPath, query, locale } = router;
+
+    document.cookie = `NEXT_LOCALE=${code}; path=/; expires=2147483647`;
+
+    if (locale !== code) {
+      router.push({ pathname, query }, asPath, { locale: code });
+    }
+  }, [router, language]);
+
   return <>{children}</>;
 };