清理引用，将NavigatorServices更改为使用Message来实现导航的切换

Models/VariableTable.cs

@@ -4,11 +4,9 @@ namespace PMSWPF.Models;
 
 public class VariableTable
 {
-    
-    public int  Id { get; set; }
+    public int Id { get; set; }
     public string Name { get; set; }
     public string Description { get; set; }
     public ProtocolType ProtocolType { get; set; }
     public List<DataVariable> DataVariables { get; set; }
-    
 }