Button/Link props have too much responsibility

[essenmitsosse]

Also, to rework the props in general. Variant still has too much responsibility.
One for color, one for type (link / button)

Originally posted by @alexdln in #1247 (comment)

[essenmitsosse]

I agree, but it reinforces my believe that the component should be split. This makes it easier to have their APIs focused on what is necessary. This probably is all interconnected with #1252