[Fix] Scenario Review Status + Depth issues (#351)

https://envipath.org/api/legacy/package/32de3cf4-e3e6-4168-956e-32fa5ddb0ce1/pathway/1d537657-298c-496b-9e6f-2bec0cbe0678

-> Node.depth can be float for Dummynodes
-> Scenarios in Edge.d3_json were lacking a reviewed flag

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#351

epdb/models.py

@@ -2344,7 +2344,10 @@ class Edge(EnviPathModel, AliasMixin, ScenarioMixin, AdditionalInformationMixin)
             "reaction_probability": self.kv.get("probability"),
             "start_node_urls": [x.url for x in self.start_nodes.all()],
             "end_node_urls": [x.url for x in self.end_nodes.all()],
-            "scenarios": [{"name": s.get_name(), "url": s.url} for s in self.scenarios.all()],
+            "scenarios": [
+                {"name": s.get_name(), "url": s.url, "review_status": s.package.reviewed}
+                for s in self.scenarios.all()
+            ],
         }
 
         for n in self.start_nodes.all():