Add Tailwind + Django Web Component (#3277)

Fixes #ISSUEID

Introduce tailwindcss[1] utilities and django-web-component[2] for
frontend design isolation and reusability.

Notes:
- Saas rules take preference over the tailwind (we might want to change
it)
- In the future, the saas should be depreciated, and reusable classes
should be updated to use tailwindcss

[1] https://tailwindcss.com/
[2] https://github.com/Xzya/django-web-components



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Co-authored-by: Fredrik Jonsson <frjo@xdeb.org>