Get a single Unsplash photo by its ID, with attribution and download links.
Returns one Unsplash photo: dimensions, colors, description, photographer details, image URLs, and the links.download_location plus links.html and user.links.html needed for attribution and download tracking.
Get the id from unsplash_search. Required attribution: credit user.name linking to user.links.html and Unsplash, with ?utm_source=faro&utm_medium=referral appended. When the photo is used, call unsplash_trigger_download.
Unsplash photo ID.