Fix ServerMessages

src/main/java/org/caosdb/server/utils/ServerMessages.java

@@ -354,7 +354,7 @@ public class ServerMessages {
       new Message(
           MessageType.Error,
           MessageCode.MESSAGE_CODE_ENTITY_NAME_DUPLICATES,
-          "This entity cannot be identified due to name duplicates.");
+          "Entity can not be identified due to name duplicates.");
 
   public static final Message DATA_TYPE_NAME_DUPLICATES =
       new Message(