Update Tailwind demos

[ryanleichty]

There were a number of inconsistencies that I noticed when using the Tailwind examples, so this PR makes everything more consistent.

• Updated a number of redundant arbitrary classes with native Tailwind classes.
• Sorted all tailwind classes using the prettier-plugin-tailwindcss.
• Fixed a few incorrect classes in the process of sorting (e.g.: color-white to text-white). The prettier-plugin-tailwindcss plugin moves unrecognized classes to the beginning of the string which can help find incorrect classes.

It might be worth considering adding the Radix design system within the Tailwind config files versus using arbitrary values for the spacing scale. I found a number of old design system values, but wasn't 100% positive which were used for the primitives when they were first created.

This pull request:

• [ ] Fixes a bug
• [ ] Adds additional features/functionality
• [x] Updates documentation or example code
• [ ] Other