[2.19.x] Update attribute list dropdown for country codes to show CountryCode (CountryName) instead of just CountryCode

[khlj]

Description

Currently country codes attribute dropdown show only country codes (i.e. USA, NZL, etc). It doesn't show country name corresponding to each country code, and it'd be a nice feature in terms of UX to show country name as well (i.e. USA (United States of America), etc).

Expected behavior:

In advanced query view, selecting location.country-code will show USA (United States of America) instead of just plain USA (along with many other country codes).

Version

2.19.x

Additional Information

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs within 7 days. Thank you for your contributions.