style(favorites): 调整收藏列表项图标容器样式

将图标容器尺寸从 64rpx 增大至 88rpx，并添加渐变背景、圆角和内阴影以增强视觉层次。
同时调整图标尺寸为 48rpx 并添加右侧外边距，优化整体布局与视觉对齐。

@@ -42,8 +42,8 @@
         <!-- Header with Icon -->
         <!-- Header with Icon -->
         <view class="flex gap-[24rpx] mb-[12rpx]">
         <view class="flex gap-[24rpx] mb-[12rpx]">
           <!-- Document Icon -->
           <!-- Document Icon -->
-          <view class="w-[64rpx] h-[64rpx] flex-shrink-0 flex items-center justify-center">
-            <image :src="getDocumentIcon(item.title)" class="w-[56rpx] h-[56rpx]" mode="aspectFit" />
+          <view class="w-[88rpx] h-[88rpx] mr-[24rpx] flex-shrink-0 flex items-center justify-center bg-gradient-to-br from-blue-50 to-blue-100 rounded-[20rpx] shadow-inner self-start">
+            <image :src="getDocumentIcon(item.title)" class="w-[48rpx] h-[48rpx]" mode="aspectFit" />
           </view>
           </view>
 
 
           <!-- Title -->
           <!-- Title -->