Merge pull request #537 from wbstack/T305819-deploy

Update CHANGELOG.md to 4.1

Update CHANGELOG.md about version 4.0

Release 3.99

Update CHANGELOG.md about readding waiting list link on landing page

Merge pull request #442 from wbstack/update-changelog

Implement v1 Wikibase.cloud landing page.

Release 3.93

Release 3.92