When developing the UI for the updated export, we plan to have the old code and new code live in the same package until the new code is fully ready to replace the old code. When a feature flag is true we use the new export code. This ticket involves adding a new store for the frontend to use, and conditionally showing the new frontend with the new store based on the feature flag. Let's add the modal with the correct title for the option the user chose to export.

When the new export feature flag is used we also want to show two options when clicking the export button in the crud view:

• Export query results
• Export full collection

Designs: 
https://www.figma.com/file/4sXj42XyicBsdQkYIugHaV/Compass-Import%2FExport?node-id=835%3A38101&t=FoEPTv8iHfB487DG-1