fix(测试跟踪): 测试计划关联功能用例，多次打开后模块显示为空

--bug=1025719 --user=陈建星 【测试跟踪】测试计划-关联功能用例-左侧目录栏显示暂无数据 https://www.tapd.cn/55049933/s/1365757

test-track/frontend/src/business/plan/view/comonents/base/RelevanceDialog.vue

@@ -60,6 +60,7 @@
       },
       close() {
         this.dialogVisible = false;
+        this.$emit("close");
       },
     }
   }

test-track/frontend/src/business/plan/view/comonents/base/TestCaseRelevanceBase.vue

@@ -3,6 +3,7 @@
     :width="width"
     :title="dialogTitle"
     ref="relevanceDialog"
+    @close="handleCloseEven"
     :full-screen="isFullScreen"
   >
     <!-- todo -->
@@ -155,7 +156,9 @@ export default {
     close() {
       this.$refs.relevanceDialog.close();
     },
-
+    handleCloseEven() {
+      this.$emit("close");
+    },
     open() {
       this.workspaceId = getCurrentWorkspaceId();
       this.getProject();

test-track/frontend/src/business/plan/view/comonents/functional/FunctionalRelevance.vue

@@ -4,6 +4,7 @@
     @setProject="setProject"
     @save="saveCaseRelevance"
     :enable-full-screen="false"
+    @close="close"
     :flag="isTestPlan"
     :multiple-project="multipleProject"
     :is-saving="isSaving"
@@ -238,6 +239,10 @@ export default {
         this.$refs.table.clear();
         this.$refs.table.clearSort();
       }
+      if (this.projectId) {
+        this.getProjectNode(this.projectId);
+        this.getTestCases();
+      }
     },
     setProject(projectId) {
       this.projectId = projectId;