refactor(user/gift): 修复 CSS 兼容性问题并优化礼品卡功能

- 移除了不兼容的 CSS 类名，解决了 WXSS 编译错误
- 优化了礼品卡详细页面，添加了二维码弹窗功能
- 简化了礼品卡统计组件，提高了页面加载速度
- 修复了 SimpleQRCodeModal组件中的样式问题
- 优化了验证页面中的布局结构

src/user/gift/redeem.tsx

@@ -5,7 +5,7 @@ import {ArrowLeft, QrCode, Gift, Voucher} from '@nutui/icons-react-taro'
 import Taro from '@tarojs/taro'
 import {View, Text} from '@tarojs/components'
 import {ShopGift} from "@/api/shop/shopGift/model";
-import {validateGiftCode, redeemGift, pageShopGift, updateShopGift} from "@/api/shop/shopGift";
+import {pageShopGift, updateShopGift} from "@/api/shop/shopGift";
 import GiftCard from "@/components/GiftCard";
 
 const GiftCardRedeem = () => {