DuePair: Preorder Reminder

Changes in this update: • New folders: Organize preorders alongside item categories. Search, filter, and move multiple items to view and compare them together. • Updated Lock Screen Live Activities: A new large card shows upcoming items and preorder-opening countdowns. Start or refresh it from Home. • Improved periodic digests: View payments due and expected deliveries for the coming month to plan your budget and schedule. • More specific delivery reminders: Set separate reminders for shipping timeframes and expected delivery dates. • Refined everyday controls: Updated priority flags, card actions, date selection across months and years, and bottom navigation.