CN-668: 601表格，处理无数据相关显示；对npm分数为-的进行处理（5项中，无数据的使用0代替）

src/components/layout/Header.vue

@@ -149,7 +149,7 @@
 <script>
 import { useRoute } from 'vue-router'
 import { get, put } from '@/utils/http'
-import { entityType, storageKey, networkOverviewTabList, operationType, networkOverviewSearchUrl, drillDownPanelTypeMapping } from '@/utils/constants'
+import { entityType, storageKey, networkOverviewTabList, operationType, networkOverviewSearchUrl } from '@/utils/constants'
 import { api } from '@/utils/api'
 import { ref } from 'vue'
 import { getNowTime, getSecond } from '@/utils/date-util'