Add urn keys to reference widgets

[paltman]

On reference widgets, make use of component keys to prevent redraw issues

[paltman]

@jacobwegner I did them all except for the new Alexandria widget. That one is done a bit differently than others as it's extending from the widgets package instead of just copying it in. I wasn't sure if you were ok with me copying it in and managing the manual merge with the extended bits so that I could key it. I don't know of another way to key it but wasn't sure if there was a special reason for extending instead of copying in that I'm missing.

[jacobwegner]

@paltman: Can we do a port of the NAC widget and then rename the existing widget as EHNAC widget?

We wanted to override the query for the Folio URNS:

https://github.com/scaife-viewer/explorehomer/pull/46

[paltman]

Done

[jacobwegner]

@paltman I went and refactored your port just a bit:

• The customized EHNAC widget was broken because it relied on $gql (which we no longer have within EH); looks like this was broken on develop. I changed the EHNAC widget to use apollo
• I finished backporting the component and widget from scaife-widgets. That way if we are extracting things out of EH to scaife-skeleton or whatever other project we set up, we have the latest bits in one place.
• I reverted EHNAC widget to extend from NAC widget (so we don't drift from NAC once factored out)
• I fixed Fix data issue with NAC widget as long as we were working on NAC.

[jacobwegner]

Fix data issue with NAC widget

[jacobwegner]

replaced via https://github.com/scaife-viewer/explorehomer/pull/67