feature: always evaluate cond if it is a function

[metalinspired]

Did you check the docs?

• I have read all the which-key.nvim docs

Is your feature request related to a problem? Please describe.

cond is evaluated only once which, in my opinion, greatly reduces its usefulness

Describe the solution you'd like

It would be nice that cond is evaluated always if it is a function.
This way we could dynamically en-/disable a mapping.

Describe alternatives you've considered

Auto command maybe...

Additional context

No response

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[metalinspired]

bump

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days.