Booking Feature

[ttrang87]

• Tutor can set a calendar
• Students can:

1. View available slots of a tutor when click on this tutor's profile
2. Make a booking (booking need to contain student's request information)

• Store booking data in Supabase
• Optional: Hold section, keep a slot for a student when she/he make a payment in 5 mins (other students will see this slot unavailable)