Frontend: Add CI/CD catalog entry underneath the explore tab

Follow up from #393623 (closed)

Add a CI/CD catalog entry underneath the explore tab to allow users to navigate to the CI/CD catalog

Proposals

⚠ There is a gap between the original design of the breadcrumb and the current Vue component implementation. We can use the current implementation, once we update the components, it would look like the same as design.

Edited by Sunjung Park