chore: change filtering

[peter-hammans]

Screenshots (if relevant)

Describe your changes

Looks like toArray doesn't always work when querying the collections for a team. Sometimes it creates an associative array with the indices as keys. This PR creates an array a different way.

Issue ticket link

Environment / Configuration changes (if applicable)

Requires migrations being run?

If not using the pre-push hook. Confirm tests pass:

Checklist before requesting a review

• I have performed a self-review of my code
• I have added appropriate unit tests
• I have created mocks for unit tests (where appropriate)
• I have added appropriate Behat tests to confirm AC (if applicable)
• I have added Swagger annotations for new endpoints (if applicable)
• I have added audit logs for new operation logic (if applicable)
• I have added new environment variables to the .env.example file (if applicable)
• I have added new environment variables to terraform repository (if applicable)