Add tailwind to dev and prod environments for CourtListener

[mlissner]

We use tailwind with Django in bots.law, so we should be able to just copy that over from the freelawproject/big_cases2 repo so that it works here too.

[mlissner]

Use tailwind v4!

[mlissner]

Do a POC on the /components/ page, where you use a couple tailwind classes and they get deployed properly.

[ashkonf]

PR: #4800

References:

• https://django-tailwind.readthedocs.io/en/latest/installation.html
• https://tailwindcss.com/blog/tailwindcss-v4-alpha#using-the-cli
• https://github.com/search?q=repo%3Afreelawproject%2Fbigcases2%20tailwind&type=code