Merge branch 'issue_3468_broken_link' into 'master'

Fixed invalid link on starred projects dashboard.

Fixes #3468

The MR fixes 'Project' links on a dashboard pages headers. See the issue for the details.

This MR does not include tests since the change is rather trivial and there are no (as far as I have seen) existing tests for checking links validity.

In case tests are required I would like to get some guidance on the implementation first. At least I would like to know what should be covered: changed links, all header links, all navigation?

See merge request !1926