UI-Components: Documentation

[jpaulet]

Document and publish the docs to Dev Portal

• [x] Documentation
  • [x] Add the current documentation on top of the repo readme
• [x] Add a list of available components and how to use it (if possible, a visual example of the component)
  • [x] Decide how to order them, by component? by "area"?
• [x] Add the docs to the Dev Portal (own section)

[elboletaire]

You have the components documentation in their folder btw: https://github.com/vocdoni/ui-components/tree/main/packages/chakra-components

[selankon]

Closed by #62