application version

src/locales/en/messages.json

@@ -547,5 +547,14 @@
   },
   "noItemsInList": {
     "message": "There are no items to list."
+  },
+  "versionNumber": {
+    "message": "Version $VERSION_NUMBER$",
+    "placeholders": {
+      "version_number": {
+        "content": "$1",
+        "example": "1.2.3"
+      }
+    }
   }
 }