Approval in backend

backend/hu/data_history.json

@@ -95,6 +95,7 @@
         "categorization": "Kategoriz\u00e1l\u00e1s",
         "measurement": "R\u00e9szletes m\u00e9ret meghat\u00e1roz\u00e1s",
         "open_versioning": "Verzi\u00f3kezel\u00e9s",
-        "number": "Number"
+        "number": "Number",
+        "querying_data_history": "Querying data history"
     }
 }