feat：线下订单添加商品可通过商品名称下拉选择

src/views/mallManagement/order/offline_order_list/index.vue

@@ -145,12 +145,19 @@
                 {{scope.row.smallName}}
               </template>
             </el-table-column>
-            <el-table-column align="center" label="商品名称" prop="goodsName" min-width="120">
+            <el-table-column align="center" label="商品名称" prop="goodsMaterialId" min-width="160">
               <template slot-scope="scope">
-                {{scope.row.goodsName}}
+                <el-select size="small" v-model="scope.row.goodsMaterialId" filterable placeholder="请选择" @change="changeSpec(scope.$index, scope.row)">
+                  <el-option
+                    v-for="item in goodsSpecList"
+                    :key="item.id"
+                    :label="item.goodsName"
+                    :value="item.id">
+                  </el-option>
+                </el-select>
               </template>
             </el-table-column>
-            <el-table-column align="center" label="规格型号" prop="goodsMaterialId" min-width="120">
+            <el-table-column align="center" label="规格型号" prop="goodsMaterialId" min-width="160">
               <template slot-scope="scope">
                 <el-select size="small" v-model="scope.row.goodsMaterialId" filterable placeholder="请选择" @change="changeSpec(scope.$index, scope.row)">
                   <el-option