frontend: Add grafana integration checkbox

What does this MR do?

Front End for #33672 (closed)

This MR adds an Active checkbox and enabled state to the grafana_integration component to indicate the status of the integration.

Note
The backend MR needs to be checked out: !19234 (merged)

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Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines

#33672 (closed)