Card: provide `button` or `a` tag within the `card` component

[mfranzke]

          We should either use a `button` or `a` HTML tag within the `card` component to enable keyboard and screenreader compatibility.

Originally posted by @mfranzke in https://github.com/db-ui/mono/pull/211#discussion_r1073673263

[nmerget]

We should use <button> for interactive cards and then there should be a disabled prop for UX and tech