Implement News dashboards

[Grotax]

• Resolves: #

Summary

Inspired by the tutorial I tried to implement two dashboards for News.

It is far from perfect.

Challenges

• On the backend part it is probably not enough to simply send the items to the frontend, there are lot's of unused attributes and one interesting, the favicon is missing as it belongs to the feed.
• Speaking about favicons, we might not be able to use them due to Content Security Policy. And I also think that using the icons there might not be the best idea, privacy and so on. If news was changed to keep the icons locally that would change things of course.
• The Widgets in style and functionality maybe don't fit our need a 100%. We currently have nothing we could put in the avatar slot.

I will probably not continue on this, I'm leaving it here as a start if someone wants to pick this up. On the backend side I would be willing to help.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Changelog entry added for all important changes.