feat: add some cheesy artwork to login page

templates/security/login.html.twig

@@ -3,13 +3,9 @@
 {% block title %}Anmelden · E&P Platz{% endblock %}
 
 {% block body %}
-    <div class="min-h-screen flex items-center justify-center px-4">
-        <div class="w-full max-w-md text-center">
-            <img class="h-8 w-auto mx-auto mb-8" src="{{ asset('images/logo_ep.svg') }}" alt="ephub">
-
-            <h1>
-                E&P Platz
-            </h1>
+    <div class="min-h-screen flex items-center justify-center px-4 bg-center bg-no-repeat bg-contain bg-[#f1f5f9]" style="background-image: url({{ asset('images/floorplan.png') }})">
+        <div class="p-8 bg-white/90 rounded-md shadow-md">
+            <img class="h-8 w-auto mb-8" src="{{ asset('images/logo_ep.svg') }}" alt="ephub">
 
             <a class="button button--secondary" href="{{ path('app_auth_init') }}">
                 Mit MyE&P anmelden