[Feature request] RecursiveBinder: Make helper hint order deterministic

Currently, RecursiveBinder's pop-up helper displays its hints in a random order determined at load time. The hints will maintain their order until the next time config is reloaded, at which point they will adopt a new random order.

This makes it harder to use the hints reliably. Instead, the hints should be sorted according to some deterministic order — alphabetical on shortcut, alphabetical on description, whatever, doesn't really matter, as long as the order is always consistent.