* No need to re-require sidekiq plugins, they are required via Gemfile

* Add derailed_benchmarks tool, no need to require TTY gems in Gemfile

* Replace ruby-oembed with FetchOEmbedService

Reduce startup by 45382 allocated objects

* Remove preloaded JSON-LD in favour of caching HTTP responses

Reduce boot RAM by about 6 MiB

* Fix tests

* Fix test suite by stubbing out JSON-LD contexts

The service used to be named FetchRemoteResourceService resolves local
URL as well.

* Fix regression in FetchRemoteResourceService

* Update specs to match interface changes made in #5114

* Add support for searching AP users

* use JsonLdHelper

* Coverage for fetch remote resource service

* Refactor fetch remote resource service

* Coverage for search service

* Refactor search service