fix(push-subscriptions): Refactor how Sidekiq jobs are handled (#4226)

app/services/notify_service.rb

@@ -65,7 +65,11 @@ class NotifyService < BaseService
   end
 
   def send_push_notifications
-    WebPushNotificationWorker.perform_async(@recipient.id, @notification.id)
+    sessions_with_subscriptions_ids = @recipient.user.session_activations.where.not(web_push_subscription: nil).pluck(:id)
+
+    WebPushNotificationWorker.push_bulk(sessions_with_subscriptions_ids) do |session_activation_id|
+      [session_activation_id, @notification.id]
+    end
   end
 
   def send_email