fix: add missing nameRequired i18n key for promo group form validation

src/locales/en.json

@@ -2527,6 +2527,7 @@
       "form": {
         "name": "Group name",
         "namePlaceholder": "VIP customers",
+        "nameRequired": "Enter group name",
         "categoryDiscounts": "Category discounts",
         "periodDiscounts": "Period discounts",
         "add": "Add",

src/locales/fa.json

@@ -2189,6 +2189,7 @@
       "form": {
         "name": "نام گروه",
         "namePlaceholder": "مشتریان VIP",
+        "nameRequired": "نام گروه را وارد کنید",
         "categoryDiscounts": "تخفیف‌های دسته‌بندی",
         "periodDiscounts": "تخفیف‌های دوره‌ای",
         "add": "افزودن",

src/locales/ru.json

@@ -3048,6 +3048,7 @@
       "form": {
         "name": "Название группы",
         "namePlaceholder": "VIP клиенты",
+        "nameRequired": "Введите название группы",
         "categoryDiscounts": "Скидки по категориям",
         "periodDiscounts": "Скидки по периодам",
         "add": "Добавить",

src/locales/zh.json

@@ -2188,6 +2188,7 @@
       "form": {
         "name": "组名称",
         "namePlaceholder": "VIP客户",
+        "nameRequired": "请输入组名称",
         "categoryDiscounts": "分类折扣",
         "periodDiscounts": "期间折扣",
         "add": "添加",