v1.3.0 Mobile Nested Menu Does Not Display Subtitles

Describe the bug

v1.3.0 手机端嵌套菜单不显示小标题 v1.3.0 Mobile Nested Menu Does Not Display Subtitles

NavItem[]

const navBar: DefaultTheme.NavItem[] = [
    {text: '首页', link: '/index'},
    //-----------
    {
        text: '工具集',
        items: [
            {
                text: '工具1',
                noIcon:true,
                items: [
                    {text: 'a', link: '/a'},
                    {text: 'a', link: '/a'},
                    {text: 'a', link: '/a'},
                ]
            },
            {
                text: '工具2',
                items: [
                    {text: 'b', link: '/b'},
                    {text: 'b', link: '/b'},
                    {text: 'b', link: '/b'},
                ]
            }
        ]
    },
    //-----------
    {text: '关于我', link: '/about'}
]

手机端显示： Mobile display:

电脑端显示： Computer display:

当我使用 v1.2.3 时一切正常。 Everything worked fine when I was using v1.2.3.

My English is terrible, and I used a translation tool, so I hope this is understandable.

Reproduction

I have reproduced the issue. stackblitz

Expected behavior

正常显示 Displayed normally

System Info

System:
    OS: Windows 11 10.0.22631
    CPU: (32) x64 AMD Ryzen 9 7950X 16-Core Processor
    Memory: 38.28 GB / 63.19 GB
  Binaries:
    Node: 18.20.4 - ~\AppData\Local\fnm_multishells\106552_1720946934721\node.EXE
    npm: 10.7.0 - ~\AppData\Local\fnm_multishells\106552_1720946934721\npm.CMD
  Browsers:
    Edge: Chromium (126.0.2592.102)
    Internet Explorer: 11.0.22621.3527

Additional context

No response

Validations

[X] Check if you're on the latest VitePress version.
[X] Follow our Code of Conduct
[X] Read the docs.
[X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.

vuejs / vitepress

v1.3.0 Mobile Nested Menu Does Not Display Subtitles #4042