Medistor reworked to handle ui threading in a cleaner way

Hyperbar.Windows/Lifecycles/ConfigurationChangedHandler.cs

@@ -6,9 +6,9 @@ public class AppConfigurationChangedHandler(DesktopBar desktopFlyout,
     AppConfiguration configuration) :
     INotificationHandler<ConfigurationChanged<AppConfiguration>>
 {
-    public ValueTask Handle(ConfigurationChanged<AppConfiguration> notification, CancellationToken cancellationToken)
+    public Task Handle(ConfigurationChanged<AppConfiguration> notification, CancellationToken cancellationToken)
     {
         desktopFlyout.Placement = configuration.Placement;
-        return ValueTask.CompletedTask;
+        return Task.CompletedTask;
     }
 }

Hyperbar.Windows/Lifecycles/KeyAcceleratorHandler.cs

@@ -3,12 +3,12 @@
 namespace Hyperbar.Windows;
 
 public class KeyAcceleratorHandler(IVirtualKeyboard virtualKeyboard) :
-    IRequestHandler<KeyAccelerator>
+    IHandler<KeyAccelerator>
 {
-    public ValueTask<Unit> Handle(KeyAccelerator request,
+    public Task<Unit> Handle(KeyAccelerator request,
         CancellationToken cancellationToken)
     {
         virtualKeyboard.Send((int)request.Key, request.Modifiers?.Select(modifier => (int)modifier).ToArray() ?? []);
-        return default;
+        return Task.FromResult<Unit>(default);
     }
 }

Hyperbar.Windows/Lifecycles/StartProcessHandler.cs

@@ -3,12 +3,12 @@
 namespace Hyperbar.Windows;
 
 public class StartProcessHandler :
-    IRequestHandler<StartProcess>
+    IHandler<StartProcess>
 {
-    public ValueTask<Unit> Handle(StartProcess request,
+    public Task<Unit> Handle(StartProcess request,
         CancellationToken cancellationToken)
     {
         Process.Start(request.Process);
-        return default;
+        return Task.FromResult<Unit>(default);
     }
 }