Move merging/unmerging of timelines into background. Move blocking into

background as well since it's a computationally expensive

app/workers/block_worker.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class BlockWorker
+  include Sidekiq::Worker
+
+  def perform(account_id, target_account_id)
+    BlockService.new.call(Account.find(account_id), Account.find(target_account_id))
+  end
+end