Se definio un hook que maneja y guarda las preferencias de lenguje

import { useTranslation } from "react-i18next";

import { Languages } from "../translations";

import AsyncStorage from '@react-native-async-storage/async-storage'

export const useLang = () => {

    const { i18n } = useTranslation();

    const changeLanguage = (lang: Languages) => {

        i18n.changeLanguage(lang);

        AsyncStorage.setItem("lang", lang);

    }

    const toggleLanguage = () => {

        const lang = i18n.language === Languages.SPANISH ? Languages.ENGLISH : Languages.SPANISH;

        changeLanguage(lang);

    }

    return {

        changeLanguage,

        toggleLanguage

    };

}

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