BookCars 8.6

• chore(mobile): upgrade to Expo SDK 55
• feat(mobile): migrate navigation from react-navigation to expo-router
• fix(mobile): prevent loading spinner from persisting in property and booking lists
• fix(mobile): implement spanish localization for checkout, notifications and bookings
• fix(mobile): user context not set after email sign up
• fix(mobile): text not centered in forgot password result screen
• fix(mobile): apply locale correctly in checkout screen
• fix(auth): handle apple login email persistence for web and mobile