[RUN-AS-IF-FOSS] Add Tabs to CI/CD Charts

What does this MR do?

Puts the CI/CD Analytics charts into tabs.

There's a strange hack that is necessary for the charts to load in a tab that requires them to be populated after the tabs mount... or something? That's what the loading business is about.

This is all behind the deployment_frequency_charts feature flag.

Screenshots (strongly suggested)

Does Not Have Deployments Chart	Has Deployments Chart

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