* TagsController inherits from ApiController
* Let ApiController inherit from ActionController::Base to have its own lifecycle
* Remove unused method
* Use only one respond_to :json for the entire API
* ApiController inherits from ActionController::Base
* Use Pundit only where needed
* Add tests and improve pagination and caching
* Add two more specs
* Add .with_video scope
* Get rid of N+1
* Only select needed columns
* Improve efficiency of the video page as well
* Add missing set_cache_control_headers to API videos#index
* Use published scope for articles
* Fix variable name
* The sequencing in the union query matters
* Fix spec
* Restore a published: true condition
* This test is actually misleading due to the union
* Revert this change, not sure why it's not a relation
* Fix useless diff
* set up video route
* add video index
* update styling
* fix mobile full width styling
* bust cache when new video is created
* add unlimited scrolling