[GHI #69] Table Documentation

[Jeremy-Walton]

Task

#69

What Changed

• Add plus and minus 3 to all alert scales
• Refactor table styles and add new modifiers for style, density, layout, and striping.
• Document Tables
• Add --rm-border-none token
• Document border tokens

Sanity Check

• Have you updated any usage of changed tokens?
• Have you updated the docs with any component changes?
• Do you need to update the package version?

Screenshots