Apple is looking to take advantage of Amazon’s ongoing dispute with Hachette Book Group — or at least ruffle Amazon’s feathers — by promoting discounted Hachette books in its iTunes Store. Currently, Apple is promoting 26 books under the heading “Popular Pre-Orders: $9.99 or Less,” and all of the books are from Hachette. Re/Code confirmed the promotion with Apple, but pricing arrangements were not disclosed. Amazon…