`stimmung-themes--toggle-prompt` gets its result backwards

[Tony Zorman]

This here should probably be

(pcase theme
	  ('stimmung-themes-light (stimmung-themes-load-light))
	  ('stimmung-themes-dark  (stimmung-themes-load-dark)))

instead, since whenever this is called we are definitely not using any of the stimmung-themes and so we should listen to the user in this case :)

[Love Lagerkvist]

It really should! Thank you for catching that, I must have just copy-pasted from the non-prompt case. Fixed it, thanks!