Make data source default cluster for alerts card

[jowg-amazon]

Description

• Make data source default cluster for alerts card

https://github.com/user-attachments/assets/107be16d-c751-4e74-9b3d-c0ad0b4aeb51

Issues Resolved

[List any issues this PR will resolve]

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [ ] Commits are signed per the DCO using --signoff

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