Bug - DashboardHeader image broken

[evwilkin]

Describe the problem
Follow up to #7954 - Codesandbox now imports DashboardHeader/DashboardWrapper imports & builds, but the header image is broken in the DashboardHeader.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[evwilkin]

This has since been resolved.