fix: Made it so no image is displayed for a book if the api does not return an image.  This prevents errors from being thrown in the console when book.imageLinks.thumbnail is undefined
fix: Made it so no image is displayed for a book if the api does not return an image.  This prevents errors from being thrown in the console when book.imageLinks.thumbnail is undefined

romarioraffington/react-mybooks,romarioraffington/react-mybooks