Userverwaltung improved

Data/UserNotificationService.cs

@@ -0,0 +1,19 @@
+namespace timetracker.Data;
+
+public class UserNotificationService
+{
+    public event Func<Task>? OnUsersChanged;
+    public event Func<int, Task>? OnUserDeleted;
+
+    public async Task NotifyUsersChangedAsync()
+    {
+        if (OnUsersChanged != null)
+            await OnUsersChanged.Invoke();
+    }
+
+    public async Task NotifyUserDeletedAsync(int userId)
+    {
+        if (OnUserDeleted != null)
+            await OnUserDeleted.Invoke(userId);
+    }
+}