fix another dict/attribute problem

app.py

@@ -154,7 +154,7 @@ class WebPushService():
             )
             # "because sometimes that's what I had to do to make it work!" - Matthew
             time.sleep(1)
-            return {"success": result["status_code"] == 201, "message": result.text, "result": result}
+            return {"success": result.status_code == 201, "message": result.text, "result": result}
 
         except WebPushException as ex:
             now = datetime.datetime.now().isoformat()