make it possible to have username

views/account/account.php

@@ -25,6 +25,7 @@
             <hr>
             <?php /* TODO: disabled for the time being, email modification should be implemented */ ?>
             <input type="email" class="text big fullWidth" name="email" placeholder="Email address" value="<?= $user['email'] ?>" disabled>
+            <input type="text" class="text big fullWidth marginTop" name="username" placeholder="Username" value="<?= $user['username'] ?>" disabled>
             <input type="password" class="text big fullWidth marginTop" name="password_new" placeholder="New password" minlength="6">
             <input type="password" class="text big fullWidth marginTop" name="password_new_confirm" placeholder="New password confirmation" minlength="6">
             <p id="accountFormError" class="formError justify marginTop"></p>

views/login/login.php

@@ -4,7 +4,7 @@
     <h2>Login</h2>
     <div class="box">
         <form id="loginForm" action="/login" method="post" data-redirect-on-success="<?= $redirectUrl ?>">
-            <input type="email" class="text big fullWidth" name="email" placeholder="Email address" required autofocus>
+            <input type="text" class="text big fullWidth" name="email" placeholder="Email address / Username" required autofocus>
             <input type="password"  class="text big fullWidth marginTop" name="password" placeholder="Password" required minlength="6">
             <p id="loginFormError" class="formError justify marginTop"></p>
             <div class="right marginTop">