Bug: playground 偏好设置中，所有的下拉框都无法选择

### Version Vben Admin V5 ### Describe the bug? playground 偏好设置中，所有的下拉框都无法选择 ### Reproduction playground 偏好设置中，所有的下拉框都无法选择 ### System Info ```shell macos，Google Chrome ``` ### Relevant log output ```shell ``` ### Validations - [x] Read the [docs](https://doc.vben.pro/) - [x] Ensure the code is up to date. (Some issues have been fixed in the latest version) - [x] I have searched the [existing issues](https://github.com/vbenjs/vue-vben-admin/issues) and checked that my issue does not duplicate any existing issues. - [x] Check that this is a concrete bug. For Q&A open a [GitHub Discussion](https://github.com/vbenjs/vue-vben-admin/discussions) or join our [Discord Chat Server](https://discord.gg/8GuAdwDhj6). - [x] The provided reproduction is a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) of the bug.