feat(localization): add English and Arabic translations for Create Category page

Author: fulleni

lib/l10n/app_localizations.dart

@@ -1118,6 +1118,18 @@ abstract class AppLocalizations {
   /// **'Cannot update: Original category data not loaded.'**
   String get cannotUpdateCategoryError;
 
+  /// Title for the Create Category page
+  ///
+  /// In en, this message translates to:
+  /// **'Create Category'**
+  String get createCategory;
+
+  /// Message displayed when a category is created successfully
+  ///
+  /// In en, this message translates to:
+  /// **'Category created successfully.'**
+  String get categoryCreatedSuccessfully;
+
   /// Title for the Edit Source page
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_ar.dart

@@ -586,6 +586,12 @@ class AppLocalizationsAr extends AppLocalizations {
   String get cannotUpdateCategoryError =>
       'لا يمكن التحديث: لم يتم تحميل بيانات الفئة الأصلية.';
 
+  @override
+  String get createCategory => 'إنشاء فئة';
+
+  @override
+  String get categoryCreatedSuccessfully => 'تم إنشاء الفئة بنجاح.';
+
   @override
   String get editSource => 'تعديل المصدر';
 

lib/l10n/app_localizations_en.dart

@@ -584,6 +584,12 @@ class AppLocalizationsEn extends AppLocalizations {
   String get cannotUpdateCategoryError =>
       'Cannot update: Original category data not loaded.';
 
+  @override
+  String get createCategory => 'Create Category';
+
+  @override
+  String get categoryCreatedSuccessfully => 'Category created successfully.';
+
   @override
   String get editSource => 'Edit Source';