feat: Enhance notifications and pagination functionality

- Implemented pagination for user notifications, allowing users to navigate through their notifications more efficiently.
- Updated the notifications page to display the total count of notifications and provide controls for adjusting the number of notifications shown per page.
- Added backend support for fetching paginated notifications and counting total notifications for users.
- Improved the user interface for notifications, including a new layout and additional help sections to guide users on managing their notifications.

components/notifications.templ

@@ -9,6 +9,11 @@ import (
 type NotificationsData struct {
 	Notifications []db.UserNotification
 	UnreadCount   int64
+	// Pagination fields
+	CurrentPage int
+	TotalPages  int
+	TotalCount  int
+	PerPage     int
 }
 
 // FormatNotificationTime formats a notification time in a user-friendly way