Can I localize the text of my Journeys?

var lang_code;
if (navigator.languages && navigator.languages.length > 0) {
    lang_code = navigator.languages[0];
} else if (navigator.language) {
    lang_code = navigator.language; // Change Journeys text if language is Spanish (ES) if (lang_code == 'es')
} 
{
    branch.setBranchViewData({
        data: {
            "$journeys_title": 'Mi App',
            "$journeys_description": 'Mi descripción',
            "$journeys_button_get_has_app": 'Abrir',
            "$journeys_button_get_no_app": 'Ver',
        }
    });
}