Changing Author / Profile Image Based on Light/Dark Mode

[LiamHardman]

Hi there,

I've been looking at getting this theme set up and so far, it's been great! I'm still learning Hugo so this might be an obvious workaround, but I think it would be really nice to see an exposed input in languages.x.toml for a darkmode_image and lightmode_image.

A pertinent example would currently be at liamhardman.cloud (very prone to restarts at this point) where essentially having inverted colours for the profile image would come in very handy.

Thanks!
Liam