Allow to configure connection to n4o-graph-importer #9
Description
When configured with URL of n4o-graph-importer instance and a collection ID, the user interface should allow to directly import RDF into the knowledge graph.
- support configuratoon with importer URL and collection ID
- add "import" button to RDF view like implemented in https://github.com/nfdi4objects/n4o-graph-admin/