feat: custom 404 page

templates/bundles/TwigBundle/Exception/error404.html.twig

@@ -0,0 +1,13 @@
+{% extends 'bare.html.twig' %}
+
+{% block body %}
+    <h2 class="px-4 py-4 text-3xl font-extrabold text-orange-500">404</h2>
+    <div class="flex flex-col bg-orange-500/50 p-4 rounded-lg gap-4 w-full md:w-[420px] border-orange-500 border-2 text-gray-50 animate-fade">
+        <div class="flex flex-col m-0 text-center">
+            <h3 class="text-2xl text-bold text-center text-gray-50">It's not you, it's me!</h3>
+            <small>(or is it?)</small>
+        </div>
+        <p class="mb-2">I don't know, maybe I used to have that page-maybe I didn't, but one thing's for sure: I
+        don't have it now. Sorry!</p>
+    </div>
+{% endblock %}