TF-1579 Always put source language in addition to current language

lib/features/base/widget/drop_down_button_widget.dart

@@ -11,7 +11,6 @@ import 'package:pointer_interceptor/pointer_interceptor.dart';
 import 'package:rich_text_composer/rich_text_composer.dart' as rich_text_composer;
 import 'package:rule_filter/rule_filter/rule_condition.dart' as rule_condition;
 import 'package:tmail_ui_user/features/composer/presentation/model/font_name_type.dart';
-import 'package:tmail_ui_user/features/manage_account/presentation/language_and_region/extensions/locale_extension.dart';
 import 'package:tmail_ui_user/features/rules_filter_creator/presentation/extensions/rule_condition_extensions.dart';
 import 'package:tmail_ui_user/features/rules_filter_creator/presentation/model/email_rule_filter_action.dart';
 
@@ -167,9 +166,6 @@ class DropDownButtonWidget<T> extends StatelessWidget {
     if (item is Identity) {
       return item.name ?? '';
     }
-    if (item is Locale) {
-      return item.getLanguageName(context);
-    }
     if (item is FontNameType) {
       return item.fontFamily;
     }

lib/features/manage_account/presentation/language_and_region/extensions/locale_extension.dart

@@ -4,7 +4,7 @@ import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
 
 extension LocaleExtension on Locale {
 
-  String getLanguageName(BuildContext context) {
+  String getLanguageNameByCurrentLocale(BuildContext context) {
     switch(languageCode) {
       case 'fr':
         return AppLocalizations.of(context).languageFrench;
@@ -22,4 +22,23 @@ extension LocaleExtension on Locale {
         return '';
     }
   }
+
+  String getSourceLanguageName() {
+    switch(languageCode) {
+      case 'fr':
+        return 'Français';
+      case 'en':
+        return 'English';
+      case 'vi':
+        return 'Tiếng Việt';
+      case 'ru':
+        return 'Русский';
+      case 'ar':
+        return 'اَلْعَرَبِيَّةُ';
+      case 'it':
+        return 'Italiano';
+      default:
+        return '';
+    }
+  }
 }

lib/features/manage_account/presentation/language_and_region/widgets/change_language_button_widget.dart

@@ -112,7 +112,7 @@ class ChangeLanguageButtonWidget extends StatelessWidget {
           padding: const EdgeInsets.only(left: 12, right: 10),
           child: Row(children: [
             Expanded(child: Text(
-              _controller.languageSelected.value.getLanguageName(context),
+              _controller.languageSelected.value.getLanguageNameByCurrentLocale(context),
               style: const TextStyle(
                 fontSize: 16,
                 fontWeight: FontWeight.normal,

lib/features/manage_account/presentation/language_and_region/widgets/lanuage_item_widget.dart

@@ -33,16 +33,31 @@ class LanguageItemWidget extends StatelessWidget {
         child: Padding(
           padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 16),
           child: Row(children: [
-            Expanded(child: Text(
-              localeCurrent.getLanguageName(context),
-              style: const TextStyle(
-                fontSize: 17,
-                fontWeight: FontWeight.normal,
-                color: Colors.black
-              ),
-              maxLines: 1,
-              softWrap: CommonTextStyle.defaultSoftWrap,
-              overflow: CommonTextStyle.defaultTextOverFlow,
+            Expanded(child: Row(
+              children: [
+                Text(
+                  localeCurrent.getLanguageNameByCurrentLocale(context),
+                  style: const TextStyle(
+                    fontSize: 17,
+                    fontWeight: FontWeight.normal,
+                    color: Colors.black
+                  ),
+                  maxLines: 1,
+                  softWrap: CommonTextStyle.defaultSoftWrap,
+                  overflow: CommonTextStyle.defaultTextOverFlow,
+                ),
+                Text(
+                  ' - ${localeCurrent.getSourceLanguageName()}',
+                  style: const TextStyle(
+                    fontSize: 17,
+                    fontWeight: FontWeight.w500,
+                    color: Colors.black
+                  ),
+                  maxLines: 1,
+                  softWrap: CommonTextStyle.defaultSoftWrap,
+                  overflow: CommonTextStyle.defaultTextOverFlow,
+                )
+              ]
             )),
             if (localeCurrent == localeSelected)
               SvgPicture.asset(