Wartungsmodus: Sperrung des Frontends für Besucher und des Backends für Redakteure
Small changes and fixes. Added return types to methods
Full Changelog: https://github.com/FriendsOfREDAXO/maintenance/compare/2.9.0...2.9.1
Full Changelog: https://github.com/FriendsOfREDAXO/maintenance/compare/2.8.7...2.9.0
Full Changelog: https://github.com/FriendsOfREDAXO/maintenance/compare/2.8.6...2.8.7
Full Changelog: https://github.com/FriendsOfREDAXO/maintenance/compare/2.8.5...2.8.6
Code fixes for PHP 8.1 made with rexstan level 8 thx @staabm @gharlan
fixed: undefined $admin