Migrate Data: Add more info in dropdown menus

### Problem description

When migrating data, I had trouble understanding the direction of the migration because there were no version numbers or anything to help me distinguish between policies/schemas with the same name (see screenshots).

### Requirements

We should add as much information as possible, I think at least the version but also other information might be useful (published, draft, or anything else you can think of).

### Definition of done

When migrating data users can clearly distinguish between the options.