DLS: anchor styles need updates

[garza-utsa]

we have regular anchor classes in typography, but they only cover on white background: https://utsa-asc.github.io/college-dls/components/detail/type.html

and some default styles for anchor text on different color backgrounds: https://utsa-asc.github.io/college-dls/components/detail/text-link.html

we need to flesh out the text link component to cover all the background variants, maybe split this up into a variant list instead of a flat preview.

but even the three default cases for text-link have a few issues:

• on grey background, not color change on hover, probably because the hover color is the same gray as the background
• the other two background colors (blue and orange stripped) make the text unreadable on hover

[garza-utsa]

example from Patty:

https://sciences.utsa.edu/iwrsp/