Breadcrumbs for document residence

[ThomasWeiser]

Show the occurrences of a document in its detail view.

API additions:

• Add field folders to type document to get the folders in which the document occurs.
• Add parameter ids to root field allFolders to query a set of folders by id.

Frontend:

• We use the term "residence" for a document's occurrences. A residence is a list a lineages, which are (non-empty) lists of folder ids.
• We query and cache a document's residence together with the document's details.
• To get the names of the involved folders there is a new need NeedFolders (List FolderId).
• If the involved folders are not already cached they are fetched separately after the document.
• The residence is displayed as breadcrumbs in UI.Article.Details below the attributes of the document.
• Each breadcrumb links to a listing in that folder.

Screenshot of a residence display (provisionally styling):