move registration link to only show with login form

src/webserver/auth/login.php

@@ -10,8 +10,6 @@
 
 <h2>Login</h2>
 
-<p>If you're new here, <a href='register.php'>register first</a>.
-
 <?php
     $errors = [];
     if (!isset($_SESSION['nickname']) && !isset($_POST['nickname'])) {
@@ -58,6 +56,7 @@
 
     function loginForm() {
 ?>
+    <p>If you're new here, <a href="register.php">register first</a>.</p>
     <form method="POST" action="login.php" />
         <p><label for="nickname">Your username: </label><input type="text" name="nickname" id="nickname" /></p>
         <p><label for="password">Your password: </label><input type="password" name="password" id="password" /></p>