Comment 2 for bug 1989151

Thanks for this branch, Mike! A few issues I noted:

1. If you do the following using the concerto data set:
* Go to Server admin > Authority Control Sets
* Select Controlling Authority Fields
* In the Control Set column, select LoC to go back to the previous screen
* The screen never loads, you get a router error in the console:

ERROR Error: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'undefined/authority/control_set'
Error: Cannot match any routes. URL Segment: 'undefined/authority/control_set'

2. In Server admin > Authority Control Sets, the "Controlling Authority Fields" and "Thesauri" links both seem to load the linked page from scratch, rather than doing a slick single-page application transition. I'm not sure why this is; at a glance, I didn't see any differences from the routerLink in the CRAD screen, which is working as expected.

3. "No cellTextGenerator provided" warnings in the console for the CRAD and authority control sets grids.