Share for review

[christianlupus]

Is your feature request related to a problem? Please describe.
I want to work on a document / project with colleagues and external partners. We need to agree on the changes, thus it would be required that all changes are made in review mode.

Describe the solution you'd like
I would like to have the option to share a document for reviewing. The share should only allow the user to add reviews and comments. Direct editing of the file should not be allowed.

Describe alternatives you've considered
You could plainly share the document with write permissions and tell the users to enable the review mode.
This implies that I trust them and that they find the option (a bit buried on mobile).

[juliusknorr]

That is a good suggestion. We had this partly tracked in server at nextcloud/server#22220, but lets keep this ticket for tracking on the richdocuments side.