Migrate from Stylus to Tailwindcss

[devmount]

Is your feature request related to a problem? Please describe.
Styles are spread and difficult to maintain.

Describe the solution you'd like
Migrate manual styles and utility classes to Tailwindcss.

Additional context
Might be interesting to find a solution for #406 with Tailwind

[devmount]

I decided against Tailwind in favor of breaking down the heavy stats page into more components and use scoped styles on them.

[devmount]

Stylus is now removed and replaced by vanilla CSS in #493