2df050e627
* [instagram] Add support for stories Add support for Instagram user's stories (https://www.instagram.com/stories/<username>/). First the shared_data in instagram.com/stories/<username> is fetched in order to retrieve the user_id that is then passed to fetch the stories via the corresponding graphql query. Please note that fetching stories is supported only when authentication is enabled and the corresponding <username> is followed. * [instagram] Add an only-matching test for stories * [instagram] Simplify InstagramExtractor.items() and _extract_stories() Simplify handling of typename in InstagramExtractor.items() and multi-line string in _extract_stories(). NFCI.