Problem: "Start Date" on collecitons is not used consistently in UI

[joel-simpson]

The “Start Date” field shown on the Collection overview screen does not match the start date shown on the Workflow history screen.

In the Collection overview screen above, there is a "Created" date (6/8/2020, 6:30:17 AM) and a "Started" date (6/11/2020, 1:57:11 AM).

In the workflow detail screen, the "started" date has the same value from the "Created" date (and there is no "created" date shown at all).

It would presumably be a quick fix to make these consistent, but it may also be useful to revisit whether "created" and "started" are the best terms to use? This is probably a separate issue, but right now there is no obvious way to see how long a collection was in the status "queued" (maybe that should be the equivalent from the point a collection is "created" and when it is "started" ?).