fix(测试计划): 测试计划脑图环境/资源节点下拉菜单修复

--bug=1046852 --user=白奇 测试规划-点击环境/资源池标签后点击其它模块节点-也展示环境/资源池下拉框 https://www.tapd.cn/55049933/s/1582607

frontend/src/components/business/ms-minders/testPlanMinder/index.vue

@@ -306,6 +306,13 @@
     () => props.status !== 'ARCHIVED' && hasAnyPermission(['PROJECT_TEST_PLAN:READ+UPDATE'])
   );
 
+  /**
+   * 是否可以显示下拉菜单
+   */
+  const canShowDropdown = ref(false);
+  const dropdownList = ref<MinderDropdownListItem[]>([]);
+  const checkedVal = ref<string>();
+
   /**
    * 检测节点可展示的菜单项
    * @param node 选中节点
@@ -752,18 +759,12 @@
     }
   );
 
-  /**
-   * 是否可以显示下拉菜单
-   */
-  const canShowDropdown = ref(false);
-  const dropdownList = ref<MinderDropdownListItem[]>([]);
-  const checkedVal = ref<string>();
-
   /**
    * 处理节点选中
    * @param node 节点
    */
   function handleNodeSelect(node: PlanMinderNode) {
+    canShowDropdown.value = false;
     if (checkConfigFormUnsaved()) {
       return;
     }

frontend/src/components/pure/ms-minder-editor/menu/nodeDropdown.vue

@@ -17,7 +17,9 @@
         :class="props.checkedVal === item.value ? 'ms-minder-node-dropdown-item--active' : ''"
         @click="item.onClick && item.onClick()"
       >
-        <div>{{ item.label }}</div>
+        <a-tooltip :content="item.label" :mouse-enter-delay="500">
+          <div class="one-line-text">{{ item.label }}</div>
+        </a-tooltip>
       </a-doption>
     </template>
   </a-dropdown>
@@ -45,6 +47,7 @@
 
 <style lang="less">
   .ms-minder-node-dropdown {
+    max-width: 350px;
     max-height: 350px;
     .ms-minder-node-dropdown-item--active {
       color: rgb(var(--primary-5)) !important;