fix(订单项表格): 将"可用数量"列标签改为"库存数量"

src/components/order-item-table/index.vue

@@ -12,7 +12,7 @@
       <el-table-column prop="specs" label="规格型号" width="120" />
       <el-table-column prop="mainItemCategoryName" label="主物料分类" width="120" />
       <el-table-column prop="warehouseName" label="仓库名称" width="120" />
-      <el-table-column prop="availableQuantity" label="可用数量" width="100" align="right">
+      <el-table-column prop="availableQuantity" label="库存数量" width="100" align="right">
         <template slot-scope="scope">
           {{ scope.row.availableQuantity | numberFormat(4) }}
         </template>