Account dropdown stays open when moving from avatar to menu

The account dropdown in the dashboard header now stays open while you move the pointer from the avatar trigger to the menu items. Previously the menu relied on hover and focus selectors on a single wrapper, so crossing the small visual gap between the avatar and the dropdown caused neither selector to match and the menu closed before you could interact with it. Signed-in users can now reach the account menu entries without the dropdown disappearing prematurely.