Heading level in components

[yceballost]

Description

Include in specs file the possibility to change heading level for headers, cards and hero components

Tasks

• [x] Update specs
  • [x] Hero
  • [x] Cards
  • [x] Headers
  • [x] Callout
  • [x] Lists
  • [x] Accordions
  • [x] Empty state
  • [x] Empty state card
  • [x] navigation bar
• [x] Web ticket