[4.0pt][Front-End Group] Add form for reservation

[Ibtisam34]

• Create a form for reserving an item

• To reserve an appointment, the user has to select a date and city (username and selected item are auto-filled).

• Use the design based on the Book a Vespa test-ride and add all necessary inputs.

• The user can also access the "Reserve" page from the navigation panel below. In that case, only the username is auto-filled.