Adds dashboard booking and notification components

Introduces reusable view components for bookings and notifications
Implements dynamic rendering of booking items and lists
Adds corresponding CSS styles for new dashboard components

Enhances dashboard user interface with interactive elements

PlanTempus.Application/Features/Dashboard/Components/NotificationListViewComponent.cs

@@ -0,0 +1,42 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace PlanTempus.Application.Features.Dashboard.Components;
+
+public class NotificationListViewComponent : ViewComponent
+{
+    public IViewComponentResult Invoke(string key)
+    {
+        var model = NotificationListCatalog.Get(key);
+        return View(model);
+    }
+}
+
+public class NotificationListViewModel
+{
+    public required string Key { get; init; }
+    public required string Title { get; init; }
+    public required string ActionText { get; init; }
+    public required IReadOnlyList<string> NotificationKeys { get; init; }
+}
+
+public static class NotificationListCatalog
+{
+    private static readonly Dictionary<string, NotificationListViewModel> Lists = new()
+    {
+        ["recent-notifications"] = new NotificationListViewModel
+        {
+            Key = "recent-notifications",
+            Title = "Notifikationer",
+            ActionText = "Marker alle som læst",
+            NotificationKeys = ["notif-1", "notif-2", "notif-3", "notif-4"]
+        }
+    };
+
+    public static NotificationListViewModel Get(string key)
+    {
+        if (Lists.TryGetValue(key, out var list))
+            return list;
+
+        throw new KeyNotFoundException($"NotificationList with key '{key}' not found");
+    }
+}