Enhancement: DataViewTreeViewFilter

Hello,

We've recently started using the DataViewTreeViewFilter in our app and it would be great if the following enhancements could be made to the filter:

• Include the option (a prop) for the tree menu not to close immediately after user selection. For example, the DataViewCheckboxFilter stays open after user selection

• Include the option to pass a custom aria-label prop into DataViewTreeViewFilter

• Include the option to provide placeholder prop, similarly as it can be provided for the DataViewCheckboxFilter

Many thanks!

Jira Issue: PF-4066

首先定位 DataViewTreeViewFilter，并将其行为和 props 与 DataViewCheckboxFilter 进行比较。实现以下选项：选择后保持树形菜单打开、传入自定义 aria-label，以及提供 placeholder；当这三个选项都按描述正常工作时，即视为完成。