Importing of refactored reports in refactored exports

MSP-9783

## Steps to verify
- [x] Have a workspace with data (rails runner db/runners/generate_dataset.rb --host-count=20) and a Pro license
- [x] Generate lots of reports 
- [x] Create a Zip Workspace export of the workspace
- [x] In a new workspace, import that export
- [x] Task should complete without error
- [x] All reports should appear in Reports -> Show Reports