getCountryByDialCode method
Get country by dial code
Implementation
Country? getCountryByDialCode(String dialCode) {
final cleanDialCode = dialCode.replaceAll(RegExp(r'[^\d]'), '');
return _getEffectiveCountries().values.firstWhere(
(country) => country.dialCode == cleanDialCode,
orElse: () => _getEffectiveCountries().values.first,
);
}