Hide info for unlicensed projects on Ops Dashboard

Issue https://gitlab.com/gitlab-org/gitlab-ee/issues/7877

What does this MR do?

Display message about unlicensed projects on operations dashboard

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content