feat(theme): 实现主题切换系统并优化经销商相关页面

- 新增主题切换系统，支持智能主题和手动选择
- 更新经销商首页、团队、订单、提现等页面样式
- 添加主题相关的Hook和样式工具函数
- 优化部分组件样式以适配新主题

src/shop/orderConfirmCart/index.tsx

@@ -195,9 +195,7 @@ const OrderConfirm = () => {
 
       <Gap height={50} />
 
-      <div className={'fixed z-50 bg-white w-full bottom-0 left-0 pt-4 pb-10'} style={{
-        boxShadow: '0 -2px 4px 0 rgba(0,0,0,0.10)'
-      }}>
+      <div className={'fixed z-50 bg-white w-full bottom-0 left-0 pt-4 pb-10 border-t border-gray-200'}>
         <View className={'btn-bar flex justify-between items-center'}>
           <div className={'flex justify-center items-center mx-4'}>
               <span className={'total-price text-sm text-gray-500'}>实付金额：</span>