bugfix: #39 use rights data-fields

src/header.pug

@@ -16,9 +16,8 @@ details
     include page-notifications.pug
 
 sib-display#profile(
-  data-fields='username,member.user,member.avatar',
+  data-fields='first_name,member.avatar',
   widget-member.avatar='sib-display-img',
-  widget-member.user='hdapp-userinfo',
   bind-user
   )