Support proportional variable-width fonts for correct column alignment

[Dima-369]

If the 'default face is set to a non-monospace font, the hint columns are not aligned properly:

This was requested and implemented in transient (requested in magit/transient#67 where the screenshot above is taken from), so I wondered if it is also possible for hydra.

transient uses this function:

(defun transient--force-fixed-pitch ()
  (require 'face-remap)
  (face-remap-reset-base 'default)
  (face-remap-add-relative 'default 'fixed-pitch))

I tried to integrate it into the hydra code myself but I had no luck with it :(

Is it possible to use transient--force-fixed-pitch in hydras or does anyone know of a solution to this?