Space+b behavior

[Arian-D]

I originally brought this up in the helix matrix, but I'm making a thread here per @gabydd's suggestion.

Basically, when a user presses Space+b they intend to switch buffers, but the helix interface's focus on the right pane stays on the same buffer that the user started with, so they'd have to do (Space + b + ⬇️ + Enter) as opposed to just (Space + b + Enter).

Personally, when I press Space+b I need to switch to a buffer other than the current one, so there's no reason to focus on it. It might seem insignificant since it's only 1 extra key, but when there's repetitive switching between open buffers it becomes noticeable.

Disclaimer: I come from Emacs' consult with this behavior, and I'd understand this may not be what everyone likes.