Remove Create from Journey views as they should be trated from travels
Set up context to send travel dates into passengers form
Autofill the departure and arrival dates in journey view
Autofill the departure and arrival dates in accomodation view

arrival and departure are reversed due to language of arriving at hotel and
departing from hotel

Make str_to_date_difference more robust, falling back to date format
Autofill the start and end dates in rental_car view
Autofill the start and end dates in services view