Solves #365416 - show project homepage only in group page view

What does this MR do and why?

This MR aims at showing the project homepage link in the package registry (published through CI pipeline) only when directed from Project group.

Screenshots or screen recordings

How to set up and validate locally

1. Create a new repo under a group.
2. Register a gitlab-runner for CI pipeline.
3. Create a simple CI config to publish the repo.
4. Commit and push some changes to the repo to trigger the CI job.
5. Check the package registry navigating from both the project and its group.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #365416 (closed)