By Heather Kelly, The Washington Post Facebook isn’t giving up on its dream of putting a camera in everyone’s home. A year after the privacy-challenged social media company released the first Portal — its smart-display device designed primarily for video chatting, but not for checking Facebook — it is adding three more Portal products. Facebook on Wednesday announced two Portal displays designed to look like picture frames, which will come in 8- and 10-inch sizes for $129 and $179, respectively.