Migrate to TailwindCSS

[qwerty287]

Discussed in https://github.com/woodpecker-ci/woodpecker/discussions/2147

^{Originally posted by **6543** July 28, 2023} https://windicss.org/posts/sunsetting.html we have to move to a maintained CSS framework and I would propose to use [TailwindCSS](https://github.com/tailwindlabs/tailwindcss) as WindiCSS originated from it

[6543]

Dont need governance lable ... it's decided ;)

And dont need explicite owner action i would say

[6543]

example pull: https://github.com/cypress-io/cypress/pull/26516

[anbraten]

I plan to do this and some cleanup, but not for 2.0