Menu/Select/Dropdown - considering refactoring focus logic

Describe the enhancement or change
Following the update that added arrow key handling on menus, we should refactor the logic for when an item is autofocused upon opening via the shouldfocusFirstItemOnOpen prop. Currently it will focus only the first valid item in the menu, but we should tweak it so that:

• If an item is selected (aria-selected, possibly also if an item with a checkbox is checked), focus should be set on that item (or the first item that matches if multiple are selected).

• Otherwise focus the first valid item in the menu.

Is this request originating from a Red Hat product team? If so, which ones and is there any sort of deadline for this enhancement?

Any other information?

Jira Issue: PF-11

首先定位与 prop shouldfocusFirstItemOnOpen 相关的 Menu、Select 和 Dropdown 焦点逻辑。跟踪这些组件打开时 aria-selected 和 checked 项是如何表示的。完成标准是：选中项，或第一个匹配的选中项获得焦点；否则由第一个有效项获得焦点，并通过相关测试覆盖现有行为。