Improve handling of different types sent by the API and the format that is acually stored in datasource-properties.json #7779
Description
Detailed Description
Currently, there are two definitions for e.g. the dataset type and the datasource type in the frontend code. They are given in api_flow_types.ts and datasource.types.ts. They likely exist due to small differences between the types that are stored in the datasource-properties.json files and the type that backend returns upon an API request.
It would be nice to unify this behaviour / the type definitions somehow to not maintain both representations all the time :)