fix(locale): el county should be city_name

[matthewmayer]

The el city_pattern file isn’t very useful, as it refers to city_prefix and city_suffix which don’t exist in el

• {{location.city_prefix}} {{person.firstName}} {{location.city_suffix}} e.g. Lake Χρήστοςton
• {{location.city_prefix}} {{person.firstName}} e.g. West Βασίλης
• {{person.firstName}}{{location.city_suffix}} e.g. Μαριαburgh
• {{person.lastName}}{{location.city_suffix}} e.g. Κανακάρης-Ρούφοςboro

In fact, the country.ts file actually includes city names, not 1st level administrative entities. So rename that to city_name and use '{{location.city_name}}' for cities.

[codecov]

Codecov Report

Merging #2106 (6b61743) into next (e094a5a) will increase coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 6b61743 differs from pull request most recent head 5c25e4e. Consider uploading reports for the commit 5c25e4e to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #2106      +/-   ##
==========================================
+ Coverage   99.59%   99.60%   +0.01%     
==========================================
  Files        2605     2605              
  Lines      244949   244963      +14     
  Branches     1252     1256       +4     
==========================================
+ Hits       243956   243995      +39     
+ Misses        966      941      -25     
  Partials       27       27              

Impacted Files	Coverage Δ
src/locales/el/location/city_name.ts	100.00% <ø> (ø)
src/locales/el/location/city_pattern.ts	100.00% <100.00%> (ø)
src/locales/el/location/index.ts	100.00% <100.00%> (ø)

... and 4 files with indirect coverage changes

[ST-DDT]

This needs to be updated as well.