* Change featured tag updates to add/remove activity
* Fix to check for the existence of feature tag
* Rename service and worker
* Merge AddHashtagSerializer with AddSerializer
* Undo removal of sidekiq_options
* Add LIMIT of featured tag to instance API response
* Add featured_tags_collection_url to Account
* Add synchronization of remote featured tags
* Deliver update activity when updating featured tag
* Remove featured_tags_collection_url
* Revert "Add featured_tags_collection_url to Account"
This reverts commit cff349fc27b104ded2df6bb5665132dc24dab09c.
* Add hashtag sync from featured collections
* Fix tag name normalize
* Add target option to fetch featured collection
* Refactor fetch_featured_tags_collection_service
* Add LIMIT of featured tag to v1/instance API response
Takeshi Umeda
Eugen Rochko