store also the user_id when adding to favorite

app/controllers/crawlers/people_crawler_controller.rb

@@ -28,6 +28,8 @@ class Crawlers::PeopleCrawlerController < Crawlers::TissCrawlerController
 
     # create stores the object to the db after creation
     favorite_hash = { tiss_id: @person['tiss_id'],
+                      # the user who is currently active
+                      user_id: current_user.id,
                       first_name: @person['first_name'],
                       last_name: @person['last_name'],
                       picture_uri: @person['picture_uri'] }