Add deprecation notice to news and events feeds#1056

Draft

NickSto wants to merge 7 commits intousegalaxy-eu:masterfrom

NickSto:news-events-deprecation

Commits on Jun 30, 2022

Add a deprecation notice to the top of news feeds.
NickSto
committed

Commits on Jul 6, 2022

Add deprecation notice to events lists, fix notice on news page.
NickSto
committed

Commits on Jul 7, 2022

Encapsulate notice in an include.
NickSto
committed

Commits on Sep 24, 2022

Increase size of notice header.
NickSto
committed

Commits on Sep 27, 2022