Adjust to metadata model changes in January release

* creators now have the "name" nested inside a property called
  "person_or_org"

invenio_theme_tuw/views.py

@@ -33,7 +33,9 @@ def tuw_cite_as(record_metadata):
     """Create an APA citation text like Zenodo."""
     # fetch the raw values from the record (with fallback values)
     creators = record_metadata.get("creators")
-    creator_names = [creator.get("name") for creator in creators]
+    creator_names = [
+        creator.get("person_or_org", {}).get("name") for creator in creators
+    ]
     num_creators = len(creator_names)
     publication_date = record_metadata.get("publication_date", arrow.utcnow().year)
     title = record_metadata.get("title")