Allow using ctrl + d to close a buffer from buffer picker by default

[Zaplae]

ctrl + d is equals to :buffer_close, this is quick by input buffer_close
if you have unsaved buffer, you have to input :bufer_close! :)

[Zaplae]

Ok, I just did't know it's alias and now the display of aliases was fixed.
I'll close this issue.

[the-mikedavis]

Let's keep this open as a C-d or similar keymap in the buffer picker could be useful to quickly close a handful of buffers.

[mangas]

@sudormrfbin might be worth renaming the ticket as it looks like the purpose has changed?

[sudormrfbin]

The title for this issue is referring to closing buffers from the buffer picker using a keybind and I think you opened a ticket with the same intent? If so the title matches since it's still about adding a keybind to the buffer list.

[mangas]

Yep you're right, I got a little confused with the alias related discussion above, nevermind!

[pickfire]

If anything I think it is better to add shortcuts to space + b and have a shortcut key there to delete buffer, rather than having another popup created just to delete buffer.

[kirawi]

I added a handle_key_events closure field to the Picker to have custom keys for each type of picker. It works, but I need to find a way to update the picker afterwards.

[pickfire]

I think later on we need some kind of infobox mechanisms to make those keys discoverable.