Update DrivesWidget.xaml.cs

Co-authored-by: hishitetsu <[email protected]>

Author: 0x5bfa

src/Files.App/UserControls/Widgets/DrivesWidget.xaml.cs

@@ -23,7 +23,7 @@ public sealed partial class DrivesWidget : BaseWidgetViewModel, IWidgetViewModel
 		public IUserSettingsService userSettingsService { get; } = Ioc.Default.GetRequiredService<IUserSettingsService>();
 		private IHomePageContext HomePageContext { get; } = Ioc.Default.GetRequiredService<IHomePageContext>();
 		private DrivesViewModel drivesViewModel = Ioc.Default.GetRequiredService<DrivesViewModel>();
-		private INetworkDrivesService NetworkDrivesService = Ioc.Default.GetRequiredService<INetworkDrivesService>();
+		private readonly INetworkDrivesService NetworkDrivesService = Ioc.Default.GetRequiredService<INetworkDrivesService>();
 
 		public delegate void DrivesWidgetInvokedEventHandler(object sender, DrivesWidgetInvokedEventArgs e);
 		public event DrivesWidgetInvokedEventHandler DrivesWidgetInvoked;