fix(ingest): send content to desk if any

if there is a desk selected send ingested content there
instead of user workspace

SD-1266
Merge pull request #449 from petrjasek/master

fix(ingest): send content to desk if any
fix(ingest): send content to desk if any.
Update to PR#449.

patch() was replaced with update() which makes _type being saved into archive collection in Mongo
Removed redundant attribute 'user'
Replaced string fetched with constant