Use the new security dashboard layout in group dashboard

What does this MR do?

This MR creates a First Class Group Level Security Dashboard which uses GraphQL as a datasource. It is currently behind a feature flag.

Screenshots

The design will be slightly different when compared to the Rest API version. This is intentional. Also this is a WIP. There are other MRs that will be pushed soon to complete this dashboard.

New version:

New version - empty state:

New version - error state:

Old version:

Demo

You can watch the demo video here.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team