Introduce an optional Preview component about kit HOT 2 CLOSED

I showed a code example in Slack, but this approach might be nice, where the Detail component is excluded from the grid/list view

<Library>
  <Example>
    <Button>Beep</Button>
    <Detail>
      {....knobsEtc}
    </Detail>
  </Example>
</Library>

from kit.

Yeah, I was pondering this as well. Would make more sense than each component like Knobs trying to handle that – I wonder if it should be an optional Example.Preview component to make it more clearly tied to Library and Example

from kit.