Adding support for search export

[digaobarbosa]

What does this PR do?

Adding support for downlaoding query results similar to how download zip works.
It starts the export process and keeps polling the export link until it's ready

Type of Change

• New feature (non-breaking change that adds functionality)

Testing

• I have tested this change locally
• I have added/updated tests for this change

Test details:
Tested with folder permissions and regular api-key

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code where necessary, particularly in hard-to-understand areas
• My changes generate no new warnings or errors
• I have updated the documentation accordingly (if applicable)

Additional Context