fix(工作台): 用例描述预览loading关闭

--bug=1028390 --user=宋昌昌 【工作台】我的待办/我的关注/我创建的-功能用例-底部换页多切换几次页面-点击用例描述预览-一直加载中转圈 https://www.tapd.cn/55049933/s/1403786

workstation/frontend/src/business/component/CaseTableList.vue

@@ -247,21 +247,13 @@ import {
   parseCustomFilesForList,
 } from "metersphere-frontend/src/utils/tableUtils";
 import HeaderLabelOperate from "metersphere-frontend/src/components/head/HeaderLabelOperate";
-import {
-  getCurrentProjectID,
-  getCurrentUserId,
-} from "metersphere-frontend/src/utils/token";
+import {getCurrentProjectID, getCurrentUserId,} from "metersphere-frontend/src/utils/token";
 
 import {getProjectMember, getProjectMemberUserFilter} from "@/api/user";
 import MsTable from "metersphere-frontend/src/components/table/MsTable";
 import MsTableColumn from "metersphere-frontend/src/components/table/MsTableColumn";
 import {SYSTEM_FIELD_NAME_MAP} from "metersphere-frontend/src/utils/table-constants";
-import {
-  editTestCaseOrder,
-  getTestCaseListById,
-  getTestCaseStep,
-  testCaseList,
-} from "@/api/test-case";
+import {editTestCaseOrder, getTestCaseListById, getTestCaseStep, testCaseList,} from "@/api/test-case";
 import MsTablePagination from "metersphere-frontend/src/components/pagination/TablePagination";
 import {TEST_CASE_CONFIGS} from "metersphere-frontend/src/components/search/search-components";
 import PriorityTableItem from "@/business/module/track/PriorityTableItem";
@@ -279,7 +271,7 @@ import TestCasePreview from "@/business/othermodule/track/TestCasePreview";
 import {parseTag} from "metersphere-frontend/src/utils";
 import {getCustomFieldValueForTrack} from "@/business/component/js/table-head-util";
 import {getTestCaseNodes} from "@/api/test-case-node";
-import {buildTree, buildNodePath} from "metersphere-frontend/src/model/NodeTree";
+import {buildNodePath, buildTree} from "metersphere-frontend/src/model/NodeTree";
 
 export default {
   name: "TableList",
@@ -763,6 +755,7 @@ export default {
       this.rowCaseResult.loading = true;
 
       getTestCaseStep(id).then((response) => {
+        this.rowCaseResult.loading = false;
         this.rowCase = response.data;
         this.rowCase.steps = JSON.parse(this.rowCase.steps);
         if (!this.rowCase.steps || this.rowCase.length < 1) {