fixed link on BookTripCard to route to correct path

[know-mad]

• Related Issue (include '#'): The link in the BookTrip Card in the /home route was not doing anything when clicked on
• Description of changes made: changed the link attribute in the defaultProps of theBookTripCard component
• Is the feature complete/bug resolved/etc..: resolved
• Any known bugs/strange behavior: n./a
• Is there specific feedback you would like on these changes: any feedback is welcomed
• Screenshot(s):