Add autoFocus prop to Button and Select

[Ruminat]

It's really inconvenient, that these components don't have that prop
In Button you can set it via extraProps (which is better, but still can be improved by adding the property directly to the component)
In Select you don't even have the extraProps, the only options you're left with are

• focusing with ref on useEffect
• or modifying the Select button with renderControl

[amje]

In the next major update we will add ability to pass all HTML props to Button, Link and Select