Localizable announcement posts

[Blueberryy]

Add option to add announcement posts that will show for other languages.

[github-actions[bot]]

This issue has been added to the backlog. It is not scheduled on the Weblate roadmap, but it eventually might be implemented.

In case you need this feature soon, please consider helping or push it by funding the development.

[nijel]

We might introduce a component that would be used to localize such content. To be addressed together with #10701.

[Blueberryy]

Thank you i hope it will make website even better