- task: refactor #179567 and #179555

- feature: support for multiple image-/grid-blocks
- feature: new install wizard for initial configuration
- task: status page merged into install wizard
- task: cleanup of status rendering and user settings
- various bugfixes (e.g. batch sync, report, gallery_menu, ...)

- improved user/role sync (incl. batch import/export of users)
- tabbed configuration screens
- better debugging options
- gallery_menu module (link to G2 albums from the menu)