fix: multi-language translation and container block style

[grommasdietz]

After the last update the content of the section rendered wrong in content and style, when using a setup with multilingual labels and help, like:

type: punctuation
headline:
  en: Whitespaces
  de: Weißräume
fieldsets:
  - category:
    label:
      en: No Break Space
      de: Geschütztes Leerzeichen
    help:
      en: '<span class="color--half hidden-characters">Alex<span class="color--full"> </span>Doe</span>'
      de: '<span class="color--half hidden-characters">Alex<span class="color--full"> </span>Mustername</span>'
    chars:
      - " "

Before:

After:

[johannschopplich]

Thanks for the PR! 👏