NPM: Add `linkifyjs`

[mjansenDatabay]

This PR adds linkifyjs as NPM dependency.

Usage:

• CoPage: Used in paragraphs
• LearningModule: Used for the export
• OnScreenChat: Used to make links in chat messages clickable.
  • See: components/ILIAS/OnScreenChat/js/onscreenchat.js

Wrapped By:

• ./components/ILIAS/Link/js/ilExtLink.js

Reasoning:

• linkifyjs is used by the OnScreenChat to transform URL-like strings into clickable HTML link elements. Without this library all kind of URL-like strings (see: https://linkify.js.org/) are not transformed anymore and our users will have to copy the strings manually into the browser address input. I doubt we can support this feature with a few regular expressions maintained by the ILIAS community.

Maintenance:

• linkifyjs is actively maintained, although it is feature-complete. In the last months a few bug fixes and improvements have been committed.

Links:

• NPM: https://www.npmjs.com/package/linkifyjs
• GitHub: https://github.com/Hypercontext/linkifyjs
• Documentation: https://linkify.js.org/docs/

[matthiaskunkel]

Jour Fixe, 22 JAN 2024: Dependency is accepted for ILIAS 10.

[klees]

This should have become part of ILIAS 10 via this PR. As always, something might have gone wrong. If you are still missing that package, please ping me.

Kind regards!