Add equals function to country code

lib/country_code.dart

@@ -1,6 +1,7 @@
 import 'package:collection/collection.dart' show IterableExtension;
 import 'package:country_code_picker/country_codes.dart';
 import 'package:country_code_picker/country_localizations.dart';
+import 'package:equatable/equatable.dart';
 import 'package:flutter/cupertino.dart';
 
 mixin ToAlias {}
@@ -9,7 +10,7 @@ mixin ToAlias {}
 class CElement = CountryCode with ToAlias;
 
 /// Country element. This is the element that contains all the information
-class CountryCode {
+class CountryCode extends Equatable {
   /// the name of the country
   String? name;
 
@@ -29,6 +30,9 @@ class CountryCode {
     this.dialCode,
   });
 
+  @override
+  List<Object?> get props => [name, flagUri, code, dialCode];
+
   @Deprecated('Use `fromCountryCode` instead.')
   factory CountryCode.fromCode(String isoCode) {
     return CountryCode.fromCountryCode(isoCode);

pubspec.yaml

@@ -13,6 +13,7 @@ dependencies:
   modal_bottom_sheet: ^2.0.0
   collection: ^1.15.0
   universal_platform: ^1.0.0+1
+  equatable: ^2.0.3
 
 flutter:
   assets: