Updated latest shared/style folders from gaia

Author: arnau march

style/headers.css

@@ -216,6 +216,10 @@ section[role="region"] > header:first-child .icon.icon-reply-all {
   background-image: url(headers/images/icons/reply-all.png);
 }
 
+section[role="region"] > header:first-child .icon.icon-options {
+  background-image: url(headers/images/icons/options.png);
+}
+
 /* Navigation links (back, cancel, etc) */
 section[role="region"] > header:first-child > button,
 section[role="region"] > header:first-child > a {