UX for CI/CD-only projects

Description

Projects that are set up as mirrors of GitHub ones, are supposed to be used for CI/CD pipelines only. Having them as all other projects is not optimal, as users will not be interested in seeing repository, but actually pipelines.

Proposal

We should create a new vision for projects when they focus on CI/CD only. Having pipelines as the primary page when the project is open, or disabling features that are not needed (issues, merge requests, etc...).

• Global pipelines list as user homepage: https://gitlab.com/gitlab-org/gitlab-ee/issues/3841
• Pipelines list as project overview: https://gitlab.com/gitlab-org/gitlab-ee/issues/3840

Links / references

Documentation blurb

Overview

What is it? Why should someone use this feature? What is the underlying (business) problem? How do you use this feature?

Use cases

Who is this for? Provide one or more use cases.

Feature checklist

Make sure these are completed before closing the issue, with a link to the relevant commit.

• Feature assurance
• Documentation
• Added to features.yml