fix hook being marked as async for no reason (#8932)

src/locale/i18n.web.ts

···
   i18n.activate(locale)
 }
 
-export async function useLocaleLanguage() {
+export function useLocaleLanguage() {
   const {appLanguage} = useLanguagePrefs()
   useEffect(() => {
     const sanitizedLanguage = sanitizeAppLanguageSetting(appLanguage)