Changed http to https in notify_moderators_of_comment_spam.html.erb (p…

…ubliclab#8587) (publiclab#8593)

* Update notify_moderators_of_comment_spam.html.erb

Changed http to https

* Hostname update in notify_moderators_of_comment_spam.html.erb

Hostname is loaded from configuration file instead of hardcoded hostname

app/views/admin_mailer/notify_moderators_of_comment_spam.html.erb

@@ -17,7 +17,7 @@
 <hr>
 <div class="footer">
 
-  <p>Visit the spam page here: <a href="http://publiclab.org/spam">http://publiclab.org/spam</a></p>
+  <p>Visit the spam page here: <a href="https://<%= ActionMailer::Base.default_url_options[:host] %>/spam">https://<%= ActionMailer::Base.default_url_options[:host] %>/spam</a></p>
 
   <p>You received this email because you are <a href="https://<%= ActionMailer::Base.default_url_options[:host] %>/wiki/moderation">a Public Lab community moderator</a></p>