Add support for web browser display

[wkramer]

Description

Support embedding a web page in a topology node. This must be allowed by the target web page (i.e. the X-Frame-Options header should be absent and Content-Security-Policy: frame-ancestor correctly set if present).

Screenshots (if applicable)

If there are any visual changes, please attach screenshots here.

Link to documentation (if applicable)

Add link to public Github pages (only documentation about configuration)

Checklist

• [ x] Make the title short and concise
• [x ] Select the correct label to include it in the release notes:
  • rel: new feature
  • rel: improvement
  • rel: fixes
  • rel: ignore
    Select to rel: ignore if this pull request fixes a New Feature or Improvement in the coming release. Update related Pull Request.
• Update documentation.
• Update tests.