Threads: add Media type

[nbartels]

https://developers.facebook.com/docs/threads/threads-media

Name	Description
id (default)	The media's ID.
media_product_type	Surface where the media is published. In the case of Threads, the value is THREADS.
media_type	The media type for a Threads post will be one of these values: TEXT_POST, IMAGE, VIDEO, CAROUSEL_ALBUM, or REPOST_FACADE.
media_url	The post’s media URL.
permalink	Permanent link to the post. Will be omitted if the media contains copyrighted material or has been flagged for a copyright violation.
owner	Instagram user ID who created the post.
username	Instagram username who created the post.
text	Represents text for a Threads post.
timestamp	Post time. The publish date in ISO 8601 format.
shortcode	Shortcode of the media.
thumbnail_url	URL of thumbnail. This only shows up for Threads media with video.
children	List of child posts. This only shows up for carousel posts.
is_quote_post	Indicates if the media is a quoted post made by another user.