Fix unfollows not clearing reblogs, fix blocks not clearing reblogs and notifications,

skip ActionCable for follow/unfollow/block events, instead clear UI from
blocked account's posts instantly if block request succeeds. Add forgotten
i18n for sensitive content

app/services/follow_service.rb

@@ -33,7 +33,6 @@ class FollowService < BaseService
     end
 
     FeedManager.instance.trim(:home, into_account.id)
-    FeedManager.instance.broadcast(into_account.id, type: 'merge')
   end
 
   def redis