Improve user controllers and views

app/Template/user_view/integrations.php

@@ -0,0 +1,13 @@
+<div class="page-header">
+    <h2><?= t('Integrations') ?></h2>
+</div>
+
+<form method="post" action="<?= $this->url->href('UserViewController', 'integrations', array('user_id' => $user['id'])) ?>" autocomplete="off">
+    <?= $this->form->csrf() ?>
+    <?php $hooks = $this->hook->render('template:user:integrations', array('values' => $values)) ?>
+    <?php if (! empty($hooks)): ?>
+        <?= $hooks ?>
+    <?php else: ?>
+        <p class="alert"><?= t('No external integration registered.') ?></p>
+    <?php endif ?>
+</form>