refactor: enhance language dropdown with user-friendly labels

Author: wired-pasteque

lib/core/settings/domain/settings_entity.dart

@@ -40,16 +40,16 @@ enum BitcoinUnit {
 }
 
 enum Language {
-  unitedStatesEnglish('en', 'US'),
-  canadianFrench('fr', 'CA'),
-  franceFrench('fr', 'FR'),
-  spanish('es', 'ES'),
-  finnish('fi', 'FI');
+  unitedStatesEnglish('en', 'US', 'English'),
+  franceFrench('fr', 'FR', 'Français'),
+  spanish('es', 'ES', 'Español'),
+  finnish('fi', 'FI', 'Suomeksi');
 
   final String languageCode;
   final String? countryCode;
+  final String label;
 
-  const Language(this.languageCode, this.countryCode);
+  const Language(this.languageCode, this.countryCode, this.label);
 
   static Language fromName(String name) {
     try {

lib/features/settings/presentation/bloc/settings_cubit.dart

@@ -97,7 +97,7 @@ class SettingsCubit extends Cubit<SettingsState> {
   Future<void> changeLanguage(Language language) async {
     final settings = state.storedSettings;
     log.config(
-      'Language changed to: ${language.name} was ${settings?.language?.name}',
+      'Language changed to: ${language.label} was ${settings?.language?.label}',
     );
     await _setLanguageUsecase.execute(language);
     emit(

lib/features/settings/ui/screens/app_settings/app_settings_screen.dart

@@ -66,17 +66,14 @@ class AppSettingsScreen extends StatelessWidget {
                     trailing: DropdownButton<Language>(
                       value: currentLanguage,
                       underline: const SizedBox.shrink(),
-                      items:
-                          Language.values
-                              .map(
-                                (language) => DropdownMenuItem<Language>(
-                                  value: language,
-                                  child: Text(
-                                    '${language.languageCode}${language.countryCode != null ? ' (${language.countryCode})' : ''}',
-                                  ),
-                                ),
-                              )
-                              .toList(),
+                      items: Language.values
+                          .map(
+                            (language) => DropdownMenuItem<Language>(
+                              value: language,
+                              child: Text(language.label),
+                            ),
+                          )
+                          .toList(),
                       onChanged: (Language? newLanguage) {
                         if (newLanguage != null) {
                           context.read<SettingsCubit>().changeLanguage(