fix(接口测试): 修复接口导入点击展开导入模块展开后点击其它空白处模块不能收起问题

--user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001017927

framework/sdk-parent/frontend/src/components/select-tree/SelectTree.vue

@@ -1,8 +1,8 @@
 <template>
-  <div v-loading="loading">
+  <div v-loading="loading" ref="projectButton">
     <div class="mask" v-show="isShowSelect"></div>
     <el-popover placement="bottom-start" :width="popoverWidth" trigger="manual" v-model="isShowSelect"
-                @hide="popoverHide" v-click-outside="outsideClick">
+                @hide="popoverHide" @show="show">
       <el-input
         size="mini"
         prefix-icon="el-icon-search"
@@ -356,10 +356,20 @@ export default {
       this.popoverHide();
 
     },
+    show(){
+      document.addEventListener('click', this.hidePanel, false)
+    },
     //下拉框关闭执行
     popoverHide() {
       this.$emit('setSelectNodeIds', this.selectNodeIds);
       this.$emit('getValue', this.returnDataKeys, this.returnDatas ? this.returnDatas : {});
+      document.removeEventListener('click', this.hidePanel, false)
+    },
+    hidePanel (e) {
+      if (!this.$refs.projectButton.contains(e.target)) {
+        this.isShowSelect = false
+        this.popoverHide()
+      }
     },
     // 多选，清空所有勾选
     clearSelectedNodes() {