feat: extract MediaController, wire into Dispatcher, delete media.php

app/templates/public/licence.php

@@ -0,0 +1,9 @@
+<main class="apropos-main" id="main-content">
+    <div class="prose apropos-single">
+        <?php if (!empty(trim($content))): ?>
+            <?= $html ?>
+        <?php else: ?>
+            <p>Contenu à venir.</p>
+        <?php endif; ?>
+    </div>
+</main>