vue-country-flag, currency symbol

 country-flag (from i18n):

https://www.npmjs.com/package/vue-country-flag

currency symbol:

https://kazupon.github.io/vue-i18n/guide/number.html  

https://phrase.com/blog/posts/nuxt-js-tutorial-i18n/#Number_localization

https://stackoverflow.com/questions/55443835/nuxt-i18n-number-localization

https://i18n.nuxtjs.org/options-reference

http://kazupon.github.io/vue-i18n/guide/number.html#custom-formatting