Wrapping via keyboard in a scrollable context menu causes incorrect wrap behavior and multiple highlights

When navigating one of the new context menus via keyboard, the selected item isn't correct on wrap and multiple items und up highlighted.

Repro:

1. Go to Unity -> Shorcuts (or Edit > Shortcuts in Windows)
2. From the drop down, add items until the context menu gets a scroll bar
3. Open the context menu and highlight an item with the mouse. Don't click.
4. Now press the down arrow until the selected item wraps

Result: It doesn't always wrap to the top. It goes back to the item the mouse is over. Continuing scrolling with the keyboard will show both the item the mouse is over and the one navigated to via keyboard as active highlighted.

Expected: Selection should wrap back to the top of the context menu

Repro: Windows, macOS. Likely Linux as well.

Tested on 2023.3.0a14