Issue#7: [Booking Feature] Previous dates should be disabled from the calendar

[ovdlambton]

Feature: Booking

Issue: Previous dates should be disabled from the calendar. At the moment I can select previous date for the departure date. For the Return date, it should disable all the dates before the departure date selected by the user.

In this case, you can observe that previous dates are enabled for flight departure date

I can select previous date for the departure date

In this case, I was able to select earlier return date than departure date

[dogershub]

Done

[ovdlambton]

Retested and Passed

Error handling implemented for now on return date earlier than departure date