Polishes up the UI for the Usage Rights Dialog

fixes CNVS-17242

Test Plan:
	- Enable Usage Rights
	- Go to New Files
	- Open up the usage rights dialog with multiple files and folders
	- The UI should look like the screenshot attached to the ticket.
	- Basically only two folders should display the rest should appear
          when you hover of the 'and X more...'
	- That text should be underlined, not blue like the screenshot

Change-Id: Id2be702e05f7bb433a9a0eb8f50e87b35c802251
Reviewed-on: https://gerrit.instructure.com/45316
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Ryan Shaw <ryan@instructure.com>
QA-Review: Jahnavi Yetukuri <jyetukuri@instructure.com>
Product-Review: Cosme Salazar <cosme@instructure.com>