Fix creeping widget sizing on user create

include/staff/templates/dynamic-form.tmpl.php

+<tr><td style="width:150px"></td><td></td></tr>
 <?php if ($form->getTitle()) { ?>
     <tr><th colspan="2">
         <em><strong><?php echo Format::htmlchars($form->getTitle()); ?></strong>:

include/staff/templates/user-lookup.tmpl.php

@@ -47,7 +47,7 @@ if ($info['error']) {
 </div>
 <div id="new-user-form" style="display:<?php echo $user ? 'none' :'block'; ?>;">
 <form method="post" class="user" action="#users/lookup/form">
-    <table width="100%">
+    <table width="100%" class="fixed">
     <?php
         if(!$form) $form = UserForm::getInstance();
         $form->render(true, 'Create New User'); ?>

scp/css/scp.css

@@ -546,15 +546,15 @@ a.print {
     border-bottom:1px solid #ddd;
 }
 
-.form_table.fixed {
+table.fixed {
     table-layout: fixed;
     border-collapse: collapse;
     width: 100%;
 }
-.form_table.fixed td {
+table.fixed td {
     width: 180px;
 }
-.form_table.fixed td + td {
+table.fixed td + td {
     width: auto;
 }