Migrate from Bootstrap to Tailwind CSS

[oubiwann]

Check out the tailwindcss components provided by Merakiui, too ...

Tasks:

• [x] #112
• [x] #114
• [x] Ensure current site builds as-is with new Docker tooling
• [x] #115
• [x] #116
• [x] Remove bootstrap
• [ ] Delete sass directory
• [x] Publish refreshed site on lfe.io
• [ ] Updated non-themed pages:
  • [ ] https://lfe.io/books/
  • [ ] https://lfe.io/reference/
  • [ ] Maybe merge reference into books?

Resources:

• https://tailwindcss.com/
• https://tailwindcss.com/docs/installation
• https://www.printlnhello.world/blog/zola-tailwindcss/
• https://www.maybevain.com/writing/using-tailwind-css-with-zola-static-site-generator/
• https://www.preline.co/docs/index.html
• https://www.preline.co/examples.html

Old (we ended up going with Preline instead of MerakiUI):

• https://merakiui.com/
• https://merakiui.com/components
• https://github.com/merakiui/merakiui

[oubiwann]

Looks like we can't push to dockerhub anymore ...

[oubiwann]

Ended up bailing on merakiui and went with preline instead.

[oubiwann]

The some remaining tasks have been defined in #122

Closing this ticket ...