Options are no longer displayed in the component prop description

[alina-beck]

Bug

Valid options for component props are no longer displayed in the props description:

Steps to reproduce

1. start the styleguide (yarn dev)
2. visit a component with @options defined in the docs (e.g. Card)
3. scroll down to the list of component props

Expected behaviour

Defined options should be listed:

Background

Was working fine in version 0.5.17