Add icon to report button

Author: ghostwords

src/skin/popup.css

@@ -354,6 +354,9 @@ body#main #pbInstructions a:hover, #firstparty-protections-container a:hover, #w
 #deactivate_site_btn, #activate_site_btn, #error {
     font-size: 16px;
 }
+#error .ui-icon {
+    font-size: 12px;
+}
 
 #not-yet-blocked-header, #non-trackers-header {
   text-align: center;

src/skin/popup.html

@@ -173,7 +173,7 @@ <h2 id="title-name"><span class="i18n_name"></span></h2>
 <div id="siteControls">
     <button id="deactivate_site_btn" class="pbButton"><span class="ui-icon ui-icon-power"></span> <span class="i18n_popup_disable_for_site"></span></button>
     <button id="activate_site_btn" class="pbButton" style="display:none"><span class="ui-icon ui-icon-power"></span> <span class="i18n_popup_enable_for_site"></span></button>
-    <button id="error" class="i18n_report_broken_site pbButton"></button>
+    <button id="error" class="pbButton"><span class="ui-icon ui-icon-mail-send"></span> <span class="i18n_report_broken_site"></span></button>
 </div>
 
 <footer>