about: create trip

receive req and insert new trip to server and then send it to Supabase

patch: we update some of these params

Content-Type: application/json

//json part
trip_name:string[varchar],
start_date:string[date],
end_date:string[date],
trip_code:string[varchar],
trip_pass:string[varchar],

// file part for trip poster
file:png/jpg