fix：[模板管理]选择模板优化

src/views/business/comps/select/SelectTemplateDialog.vue

@@ -23,6 +23,7 @@
               <el-radio v-model="selectedId" :label="scope.row.id" class="hide-label"  @click.native.stop="handleRadioClick(scope.row)"></el-radio>
             </template>
           </el-table-column>
+          <el-table-column label="测试用" align="center" prop="sn" />
           <el-table-column :label="$t('page.system.template.sn')" align="center" prop="showSn" />
           <el-table-column :label="$t('page.system.template.name')" align="center" prop="name" />
           <el-table-column :label="$t('page.system.template.department')" align="center" prop="deptName" width="150px"/>