WIP: [FE] Resolve "Group Cycle Analytics Over Time - (1) Get Cycle Analytics to work on Group Level"

What does this MR do?

Adds cycle analytics on a group level

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Style guides

Performance 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

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/12753