Promote sidebar curation mode to proper curation page
Describe the refactoring action The sidebar curation mode is useful, but because it is a mode on the annotation page, it does not integrate well into proper workflow. E.g. when a user wants to use it to curate, they first need to access the annotation page and then enter the curation mode. When accessing the page, they first have to chose a document for annotation before they can activate the curation mode and then access the curation-mode-specific open-document dialog. It is odd.
Expected benefit Having a (new) curation page which is basically the annotation page but with a permanently activated curation sidebar makes more sense. Also, the curation sidebar mode could then be removed again from the annotation page.