fix: 库存表格组件调整新增按钮显示条件，仅当needProduce等于4时显示

src/views/saleManage/saleOrder/invoice/components/inventoryTable.vue

@@ -32,7 +32,7 @@
             icon="el-icon-plus"
             class="ele-btn-icon"
             @click="handParent()"
-            v-if="isShowAdd && needProduce != 4"
+            v-if="isShowAdd && needProduce == 4"
           >
             新增
           </el-button>