[1.1.0] improve display of consent_banner in library

See https://project.pages.drupalcode.org/ui_patterns/2-authors/1-stories-and...

name: In latin
library_wrapper: '<div class="card">{{ _story }}</div>'
slots:
  title: "Dapibus ac facilisis"
  subtitle: "Cras justo odio"
props:
  heading_level: 5

Beware of the underscore in _story.

Automatically closed - issue fixed for 2 weeks with no activity.