[STORY] as programme coordinator, I want to be able to export a list of all shows with their respective categories, so I get an overview for the annual RTR reporting

For the annual report to the RTR, all radios need to show how many own shows they run (Eigenproduktionen) and how many shows are takeover of existing programmes (Sendungsübernahmen). For that reason, programme coordinators need to be able to view all shows with their RTR-relevant categories and be able to export that list. In the AURA Pflichtenheft, this is mentioned as a basic requirement. This feature can be possibly integrated as a proKo-feature into the projected "list all shows" page.