bugfix:修复Mqtt服务器详情页变量值不更新的问题，修复修改Mqtt别名后台不更新的问题，重新调整了别名的架构

DMS.WPF/Services/DataStorageService.cs

@@ -46,6 +46,11 @@ public class DataStorageService : IDataStorageService
     /// </summary>
     public ObservableCollection<NlogItem> Nlogs { get; set; }
 
+    /// <summary>
+    /// MQTT别名列表。
+    /// </summary>
+    public ObservableDictionary<int, MqttAliasItem> MqttAliases { get; set; }
+
     /// <summary>
     /// 触发器列表。
     /// </summary>
@@ -60,6 +65,7 @@ public class DataStorageService : IDataStorageService
         Menus=new ObservableCollection<MenuItem>();
         MenuTrees=new ObservableCollection<MenuItem>();
         Nlogs=new ObservableCollection<NlogItem>();
+        MqttAliases=new ObservableDictionary<int, MqttAliasItem>();
         Triggers = new ObservableDictionary<int, TriggerItem>();
         
     }