Project_Compass/app/Views/layouts/app.php

<?php

declare(strict_types=1);

require __DIR__ . '/../partials/header.php';
?>

<main id="main-content" class="page-content">
    <div class="container">
        <?= $content ?>
    </div>
</main>

<?php require __DIR__ . '/../partials/footer.php'; ?>