bug(StarterState): does not save changes when component authoring has not been opened

[hirokiterashima]

This happens when you go straight to component preview (before expanding the component). The component authoring's ngOnInit() hasn't been called yet, which listens to the starter state changes. The workaround is to expand the component first, then click on the preview.

We should discuss how we want to handle this- don't show the preview button until it's been expanded, like the advanced? Or move the listener outside of the component authoring?