Keyboard navigation loses focus after selection in Select/Dropdown components (focus reset to page root)

[BaggerFast]

When using keyboard navigation (Arrow keys, Enter/Space) in interactive components such as Select or Dropdown, the focused element is lost after selecting a value.

Instead of preserving or moving focus to the next logical element, focus resets to the beginning of the page or becomes unpredictable across focusable elements.

This breaks expected keyboard navigation flow and significantly impacts accessibility and usability.

Steps to reproduce:

1. Open a Select or Dropdown component using keyboard (Tab or Enter)
2. Navigate options using ArrowUp / ArrowDown
3. Select an option using Enter or Space
4. Continue pressing Tab

Expected behavior:

Focus should remain inside the component, or
Move to the next logical focusable element in DOM order
Keyboard navigation should continue seamlessly without reset

[mathewtaylor]

Fixed by #341 (merged to develop in 7cb4730f). Select, DropdownMenu, and Popover now restore focus to their trigger on intentional close (Escape / item selection); external dismissals (click-outside, Tab) deliberately leave focus where the user moved it. Verified in-browser across all three components.