Add event handler props for components.

Force TextInput and Select to be `block`. Also, removed props regarding styling.

Cover scenarios primarily for adjusted behavior on Button, as well as ensure components are exported correctly.

Remove props from Slider that has something to do with incorrectly setting `orientation` to a `div`-like element.

Also, we fix the import in the Icon test.

Migrate from GitHub, rewrite common components to TypeScript (main and test files). Also replaced Storybook to Docz.