Add Apple Wallet QR code

Related to #6

Add a QR code for Apple Wallet below the UUID QR code in the ticket view.

Add a new QR code for Apple Wallet below the UUID QR code in apps/website/lib/feature/ticket/ui/ticket_view.dart.
Add Text labels below each QR code in apps/website/lib/feature/ticket/ui/ticket_view.dart.
Add 8px spacing between the QR codes in apps/website/lib/feature/ticket/ui/ticket_view.dart.
Add a new QR code for Apple Wallet below the UUID QR code in apps/reader/lib/feature/ticket/ui/ticket_summary_view.dart.
Add Text labels below each QR code in apps/reader/lib/feature/ticket/ui/ticket_summary_view.dart.
Add 8px spacing between the QR codes in apps/reader/lib/feature/ticket/ui/ticket_summary_view.dart.

For more details, open the Copilot Workspace session.

YumNumm / ticket-system