Add href to Dashboard Card links
Add href to Dashboard Card links

fixes CNVS-25424

Test plan:
- Verify that you can open a dashboard card link by cmd/ctl/right clicking
on the course title.
- Verify that you can still click anywhere in the "hero image" and course
  title section of the card to navigate to the course.

Change-Id: Ieea2aec3e57d755098a6e38a6ef0ff58699d4caf
Reviewed-on: https://gerrit.instructure.com/70686
Reviewed-by: Colleen Palmer <387ba1943871e60965e6b44638a2f2e1ab9b8469@instructure.com>
Product-Review: Colleen Palmer <387ba1943871e60965e6b44638a2f2e1ab9b8469@instructure.com>
Reviewed-by: Ryan Shaw <ea3cd978650417470535f3a4725b6b5042a6ab59@instructure.com>
QA-Review: Myller de Araujo <e5c7c5e1b7f2ce5e9870cc98ec52b20b3006cb48@instructure.com>
Tested-by: Jenkins

SwinburneOnline/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,roxolan/canvas-lms,matematikk-mooc/canvas-lms,djbender/canvas-lms,roxolan/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,fronteerio/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,roxolan/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms,fronteerio/canvas-lms,HotChalk/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,matematikk-mooc/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,dgynn/canvas-lms,HotChalk/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,dgynn/canvas-lms,sfu/canvas-lms,instructure/canvas-lms