fix(接口测试): 修复关闭case详情时提示资源不存在的缺陷

--bug=1039834 --user=吕梦园
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001039834

frontend/src/views/api-test/management/components/management/api/index.vue

@@ -376,7 +376,7 @@
     () => activeApiTab.value.isNew,
     async (newValue, oldValue) => {
       // isNew从true变成了false
-      if (oldValue && !newValue) {
+      if (oldValue && !newValue && activeApiTab.value.id !== 'all') {
         const res = await getDefinitionDetail(activeApiTab.value.id);
         activeApiTab.value.createUserName = res.createUserName;
         activeApiTab.value.updateTime = res.updateTime;