A not-logged in user should be able to see all metadata, but not see the edit buttons

[nuest]

How to reproduce

• Open a compendium while not logged in

Problems

The user can only see all metadata when clicking the "Edit" button:

The update button is active, the error message only appears when trying to click "Save".

In a read-only mode, there should be no need to "Cancel" (click again in modal) to leave the page:

The "Next" button also seems not to work.