v3.4.1
This patch fixes the extension's documentation rendering. The <project> element in Documentation/guides.xml carried an invalid extension-key attribute that broke the render on docs.typo3.org; that attribute is now removed. A dedicated docs render CI job is added so future documentation regressions are caught before release.
No runtime behavior changes. The reworked backend icon shipped in v3.4.0 and is unaffected here.
This is an additive patch release: it is backward compatible, so any project depending on ^3.4 (or ^3.0) picks it up automatically on the next composer update.