Approval in backend

backend/cs/data_history.json

@@ -95,6 +95,7 @@
         "categorization": "Kategorizace",
         "measurement": "M\u011b\u0159en\u00ed",
         "open_versioning": "Otev\u0159en\u00e9 verzov\u00e1n\u00ed",
-        "number": "Number"
+        "number": "Number",
+        "querying_data_history": "Querying data history"
     }
 }