add icon next to bounced emails in the sent email logs

app/assets/javascripts/admin/templates/email-sent.hbs

@@ -29,7 +29,10 @@
             —
           {{/if}}
         </td>
-        <td><a href='mailto:{{unbound l.to_address}}'>{{l.to_address}}</a></td>
+        <td>
+          {{#if l.bounced}}{{fa-icon "repeat" title="admin.email.bounced"}}{{/if}}
+          <a href='mailto:{{unbound l.to_address}}'>{{l.to_address}}</a>
+        </td>
         <td>{{l.email_type}}</td>
         <td class='post-link'>
           {{#if l.post_url}}

app/assets/javascripts/discourse/helpers/fa-icon.js.es6

@@ -12,6 +12,7 @@ export function iconHTML(icon, params) {
   params = params || {};
 
   var html = "<i class='" + iconClasses(icon, params) + "'";
+  if (params.title) { html += ` title='${I18n.t(params.title)}'`; }
   if (params.label) { html += " aria-hidden='true'"; }
   html += "></i>";
   if (params.label) {