[Enhancement] Image borders

## Summary
Disclaimer: I'm not sure how feasible this is and have not looked into it at all yet!

Many images, especially ones consisting of multiple colors and a transparent background, do not have sufficient color contrast against their background. This leads to a failure to meet accessibility requirements.

Images can easily be made more accessible (with regard to color contrast) by adding a single color border/outline that contrasts against the background. So, if we could introduce a property to enable image outlines/borders, that could be super helpful for accessibility.

## Inspiration

I came across this when I had issues with images in my recipes app:


## Intended Use Case
Making images more accessible

## Workaround
Just use images that already have these accessible traits