Make the key customizable to "Toggle the which-key with the fuzzy-find"

[younger-1]

Describe the problem

I found <CR> is more comfortable for me to press than to toggle the fuzzy-find in which-key.

Describe the solution

Like the title. :)

[Cassin01]

Hello younger-1,
I just add the setup-option for builtin-keymaps.
You can change the toggle key by setting the key like bellow.

require("wf").setup({
  builtin_keymaps = {
    toggle = "<C-K>"
  }
})

Thank you for suggestion!