Optimizing images in the repo (tracking issue)

[triphora]

As was mentioned on #8:

I think that's a fairly solid point - however, I'm not sure it's that useful to manually compress/optimise them via a PR. It'd be better if we could automate this somehow - any ideas?

We could setup a github action workflow that compresses any new image, I guess. I think what we should be looking at is having smaller copies of the same image though, like some 64x64 and 128x128.

I've had this in my notifications inbox for three months now and I don't want this to fade into obscurity, so here's a tracking issue to get the ball rolling in terms of discussion.