Approval in frontend

frontend/ro/catalogue.json

@@ -0,0 +1,12 @@
+{
+    "catalogue": {
+        "volume": "Volume",
+        "public": "Public",
+        "not_public": "Not public",
+        "title_main": "Museum-Digital",
+        "title_sub": "Object catalogue for",
+        "generated": "Generated",
+        "works": "Works",
+        "signature": "Signature"
+    }
+}