Explore updates to our fluid type calculations for simplicity and accessibility

[tylersticka]

Overview

We last refactored our fluid type calculations in 2021 (#1560), but since then there's been more research and development on the topic.

Our current calculations seem to be working well, but there may be an accessibility issue with the negative number in the calculations.

Some more recent calculators do not seem to rely on negative calculations:

• Utopia: Fluid type scale calculator
• Min-Max Value Interpolation

We may want to test our fluid type more thoroughly, and possibly revisit our mixin to see if we can generate something even nicer.