Make project compatible with server-side render

[2fd]

Motivation:

We are adopting gatsbyjs as our framework to generate static sites and it will be a goal if we could use this project because:

• it will help maintain a consistent experience through sites
• it will be easier and faster develop new sites

Curren limitations:

The only restriction to make a project compatible with server-side render with gatsbyjs is never access the Web APIs (DOM, Window, Storage, etc) outside of componentDidMount or useEffect

Currently only src/components/Atlas/Atlas.tsx isn't compatible with SSR (because a dependency). To avoid a compilation error we must be able to import each component individually.

Changes required

• Avoid index import

-    import { Locale } from '../..'
+    import { Locale } from '../LanguageIcon/LanguageIcon.tsx'

https://github.com/decentraland/ui/blob/master/src/components/Footer/Footer.tsx#L8

• Generate individual files for each component, so we can import as follow

    import { Footer } from 'decentraland-ui/lib/components/Footer'

• Generate files for css-only components
  • './components/Button/Button.css'
  • './components/Container/Container.css'
  • './components/Card/Card.css'
  • './components/Dimmer/Dimmer.css'
  • './components/Dropdown/Dropdown.css'
  • './components/Header/Header.css'
  • './components/HeaderMenu/HeaderMenu.css'
  • './components/Modal/Modal.css'
  • './components/Loader/Loader.css'
  • './components/Pagination/Pagination.css'
  • './components/Popup/Popup.css'
  • './components/Radio/Radio.css'
  • './components/Segment/Segment.css'
  • './components/Table/Table.css'

# ./components/Button/Button.css
+ export { Button } from 'semantic-ui-react'
+ import './Button.css'

Others improvements:

• avoid componentWillMount: is deprecated and it will be removed in next major more
• move Locale definition outside LanguageIcon
• move react-tile-map inside Atlas.tsx

[cazala]

Closed by #60

[brennanfife]

SSR works with v2.15.0, but at some point, it became incompatible (even before v3.0.0)