Update username from email in login

rss/php/templates/login.php

@@ -5,8 +5,8 @@
                 <form id="loginForm" class="user-form">
                     <h2>Login</h2>
                     <div class="form-control mb-3">
-                        <label>Email</label>
-                        <input type="email" class="form-input" name="email" id="email" required placeholder="Email">
+                        <label for="username">Username</label>
+                        <input type="text" class="form-input" name="username" id="username" required placeholder="Username">
                     </div>
                     <div class="form-control mb-3">
                         <label>Password</label>