[ADF-2826] added a check for duplicate permission add (#3265)

* [ADF-2556] first step to create add people or group to permissions

* [ADF-2556] creating a dialog with user results

* [ADF-2556]
integrated service for add and remove permission from node

* [ADF-2556] fixed behaviour and style for add user group

* [ADF-2556] added some refactoring for dialog service

* [ADF-2556] refactoring the dependencies of the components

* [ADF-2556] added some fix and a new key for dialog

* [ADF-2556] start adding test for node permission service

* [ADF-2556] added test for add permission panel component

* [ADf-2556] adding tests for new add permission component

* [ADF-2556] fixed tests and added documentation

* [ADF-2556] fixed documentation for add-node components

* [ADF-2556] added peer review changes

* [ADF-2826] added a check for duplicate permission add

* [ADF-2826] removed fdescribe

* [ADF-2826] applied peer review changes

lib/content-services/i18n/en.json

@@ -264,14 +264,17 @@
       "ROLE": "Role",
       "LOCALLY_SET": "Locally set",
       "NO_PERMISSIONS": "No permissions"
-      },
-      "ADD-PERMISSION": {
-        "SEARCH" : "Search",
-        "TYPE-MESSAGE" : "Type something to start searching groups or people",
-        "NO-RESULT": "No result found for this search",
-        "ADD-ACTION" : "ADD",
-        "CLOSE-ACTION" : "CLOSE",
-        "BASE-DIALOG-TITLE" : "Search a group or people to add..."
-      }
+    },
+    "ADD-PERMISSION": {
+      "SEARCH": "Search",
+      "TYPE-MESSAGE": "Type something to start searching groups or people",
+      "NO-RESULT": "No result found for this search",
+      "ADD-ACTION": "ADD",
+      "CLOSE-ACTION": "CLOSE",
+      "BASE-DIALOG-TITLE": "Search a group or people to add..."
+    },
+    "ERROR": {
+      "DUPLICATE-PERMISSION": "One or more of the permission you set is already present : {{list}}"
+    }
   }
 }