Country list is not complete per ISO 3166-1 alpha-2

[andlbrei]

🐛 Bug Report

This isn't really a bug I guess, but I think the country list should be based on a standard list of countries, and not a phone country code list.
Our team requires compliance with https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 and cannot use Eufemia for the country list unless it is updated.
One issue with this approach is that we need to do some research to figure out which phone country code a country has for the countries that are in ISO 3166 alpha-2 but not in the phone country code list. Most likely these countries are autonomous regions of other countries.

I will make an MR with a ISO 3166-1 alpha-2 compliant list of countries.