Rethink display for publication support

[karafecho]

This issue is to suggest that we rethink how publications are displayed in the "Supporting Publications" box in the "Answer Explorer". Currently, the default, if you will, is to display a notification of "No Supporting Publications Found", but in some cases, if a user clicks on an edge, or reviews the JSON output, they indeed will find supporting publications. But most users may not take that extra step.

Here's an example. I don't think the issue is unique to edges derived from Text Mining Provider, but it may be related to the use of PMC vs PMID.

I believe I created an issue related to this one a while back, but I'm creating a new one, as an external user recently complained (for valid reasons!).