Use create-next-app to bootstrap documentation.

The build system has been migrated from rollup to pridepack, and the
propTypes for the components have been deprecated, as the prop typing is
now done in TypeScript type declarations.

The documentation is in the process of migration from Next to Storybook.
Issues with docgen remain for components with forwarded refs.

Add value, defaultValue, and checked props to appropriate elements.

Add link to Feather Icons for the Icon component.

The styling of TextInput docs has been fixed.

Test docs against Lynx, also make docs print-friendly.

Use Encode Sans variable axes from Google Fonts. Also specified code blocks and images to be grayscale in print mode.

Use Next.js router links instead of the ordinary `<a>` tags.

Parse descriptions as Markdown. Also improve loading of current theme.

Remove awkward space when no default value is specified in the prop definition.

Include web fonts in loading.

Add compatibility for a smoother transition of themes.

Set colors for dark and light theme.

Use rel attributes to specify currently selected theme.

Add syntax highlighting + improved props table.

Return basePath, use public URL for CSS.

Prepare requirements for Next to build the documentation.

Make sidebar toggleable on mobile.

Make docs use the latest (bleeding edge) of the components by importing them directly.

Display prop table in each component's props section

Use src/ for react-common source

TODO: put other package-related files in packages/react-common/

Implement Next.js MDX

Separate the docs from the code and tests.