更改了菜单点击导航模式，新增了设备详情页

Views/VariableTableView.xaml.cs

@@ -1,13 +1,14 @@
 using System.Windows.Controls;
+using Microsoft.Extensions.DependencyInjection;
 using PMSWPF.ViewModels;
 
 namespace PMSWPF.Views;
 
 public partial class VariableTableView : UserControl
 {
-    public VariableTableView(VariableTableViewModel viewModel)
+    public VariableTableView()
     {
         InitializeComponent();
-        DataContext = viewModel;
+        DataContext = App.Current.Services.GetRequiredService<VariableTableViewModel>();
     }
 }