Simplfied publication workflow for members of the moderator role

[max-moser]

Right now, curation requests are created regardless of the whether the uploader is a reviewer or a "regular" user.
Since reviewers can accept and publish their own requests, this effectively just means an unnecessary extra few clicks in their workflow.

To fix that, we could either...
(a) require another reviewer's OK for that, or
(b) allow reviewers to simply publish without review, or
(c) have the system automatically set the review to "accepted" upon creation

The first variant may be desirable for larger teams, but of course breaks if you only have a single reviewer available.

The second and third options are very similar, and probably the simpler (and potentially even more desirable way) to go.
For the needs of TU Wien, I think the third option would be the most convenient.
Then we can configure the test deployment to automatically accept requests in general, without changing the underlying workflow.