Send Salmon interactions

Gemfile

Gemfile.lock

app/models/favourite.rb

app/models/follow.rb

app/models/status.rb

app/services/base_service.rb

app/services/fetch_entry_service.rb

app/services/fetch_feed_service.rb

app/services/follow_remote_account_service.rb

app/services/follow_service.rb

app/services/process_feed_service.rb

app/services/process_interaction_service.rb

app/services/send_interaction_service.rb

app/services/setup_local_account_service.rb

app/services/unfollow_service.rb