feat(chore): generate new and word order labels from data attribute

[lubber-de]

Description

This PR stronlgy improves #446 and

• implements automatic header label creation for "New in..." via data-attribute
  • also unifies the label color now
• implements automatic header label for required word order via data-attribute
  • links to a central description on label click why word order is sometimes necessary
• added lots of missing highlight words in data-class
• adjusted lots of highlight class logic when no h4 header or "another example" or "without ui" was used
• enhances source code display
  • highlight required classes
  • highlight word order classes in different color
  • support multiple classes inside one class definition

Screenshots

Closes

https://github.com/Semantic-Org/Semantic-UI/issues/2494#issuecomment-118257133 https://github.com/fomantic/Fomantic-UI/issues/2738#issuecomment-1472448448