element-plus树形菜单组件静态布局

<template>
    <div>
        <el-card shadow="never" class="border-0">
            <template #header>
                <!-- 新增/刷新 -->
                <div class="flex justify-between">
                <el-button type="primary" @click="handleAdd">新增</el-button>
                <el-button size="default">
                    <el-icon><Refresh /></el-icon>
                </el-button>
                </div>
            </template>
            <!-- 显示区域 -->
            <el-tree :data="menuData" 
            :props="{label:'name',children:'child'}" 
            v-loading="loading"
            node-key="id"
            :default-expanded-keys="defaultExpandedKeys">
                <!-- 自定义树形控件 -->
                <template #default="{node,data}">
                    <div class="custom-tree-node">
                        <!-- 左侧 -->