refactor: 优化骨架屏的key属性设置

- 修改多个页面的骨架屏组件，更新v-for循环中的:key属性，使用索引i作为唯一标识，提升渲染性能和可读性
- 确保在骨架屏加载时，组件的key属性不再使用字符串拼接，避免潜在的渲染问题

pages/picking/index.vue

@@ -25,7 +25,7 @@
         </view>
         <!-- 骨架屏 -->
         <view class="list row bothSide" v-if="loading && list.length === 0">
-            <view class="box skeleton-box" v-for="i in 4" :key="'skeleton-' + i">
+            <view class="box skeleton-box" v-for="i in 4" :key="i">
                 <view class="skeleton-item" style="width: 65%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 50%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 55%; height: 32rpx; margin-bottom: 20rpx;"></view>

pages/putaway/index.vue

@@ -35,7 +35,7 @@
         </view>
         <!-- 骨架屏 -->
         <view class="list row bothSide" v-if="loading && list.length === 0">
-            <view class="box box-width skeleton-box" v-for="i in 4" :key="'skeleton-' + i">
+            <view class="box box-width skeleton-box" v-for="i in 4" :key="i">
                 <view class="skeleton-item" style="width: 70%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 50%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 60%; height: 32rpx; margin-bottom: 20rpx;"></view>

pages/tallyReceive/index.vue

@@ -60,7 +60,7 @@
         </view>
         <!-- 骨架屏 -->
         <view class="list row bothSide" v-if="loading && list.length === 0">
-            <view class="box skeleton-box" v-for="i in 4" :key="'skeleton-' + i">
+            <view class="box skeleton-box" v-for="i in 4" :key="i">
                 <view class="skeleton-item" style="width: 60%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 80%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="bor row"></view>

pages/transfer/index.vue

@@ -19,7 +19,7 @@
         </view>
         <!-- 骨架屏 -->
         <view class="list row bothSide" v-if="loading && list.length === 0">
-            <view class="box skeleton-box" v-for="i in 4" :key="'skeleton-' + i">
+            <view class="box skeleton-box" v-for="i in 4" :key="i">
                 <view class="skeleton-item" style="width: 65%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="skeleton-item" style="width: 50%; height: 32rpx; margin-bottom: 20rpx;"></view>
                 <view class="bor row"></view>

pages/transfer/task.vue

@@ -24,7 +24,7 @@
         </view>
         <!-- 骨架屏 -->
         <view class="list" v-if="loading && list.length === 0">
-            <view class="box row skeleton-box" v-for="i in 3" :key="'skeleton-' + i">
+            <view class="box row skeleton-box" v-for="i in 3" :key="i">
                 <view class="skeleton-item" style="flex: 0 0 100%; width: 60%; height: 32rpx; margin-bottom: 16rpx;"></view>
                 <view class="skeleton-item" style="flex: 0 0 50%; width: 80%; height: 28rpx; margin-bottom: 16rpx;"></view>
                 <view class="skeleton-item" style="flex: 0 0 50%; width: 70%; height: 28rpx; margin-bottom: 16rpx;"></view>