FIX: Improve top links section from user summary (#15675)

* Do not extract links for hotlinked images
* Include only links that have been clicked at least once in user
summary

app/models/user_summary.rb

@@ -40,6 +40,7 @@ class UserSummary
       .merge(Topic.listable_topics.visible.secured(@guardian))
       .where(user: @user)
       .where(internal: false, reflection: false, quote: false)
+      .where('clicks > 0')
       .order('clicks DESC, topic_links.created_at DESC')
       .limit(MAX_SUMMARY_RESULTS)
   end