made auto phpcbf changes; added some documentation

views/home.php

@@ -1,7 +1,7 @@
 <?php
 // Assuming session_start() is called in the front controller or app.php
 
-$content = function() { ?>
+$content = function () { ?>
     <div class="jumbotron">
         <h1 class="display-4">Welcome to Bill Reminder!</h1>
         <p class="lead">Never miss a payment again with our easy-to-use bill management system.</p>
@@ -27,4 +27,4 @@ $content = function() { ?>
     </div>
 <?php };
 
-include __DIR__ . '/layouts/app.php';
+require __DIR__ . '/layouts/app.php';