feat: add the admin layout shell

composer.json

@@ -12,6 +12,7 @@
         "doctrine/orm": "^3.7",
         "phpdocumentor/reflection-docblock": "^6.0",
         "phpstan/phpdoc-parser": "^2.3",
+        "symfony/apache-pack": "*",
         "symfony/asset": "7.4.*",
         "symfony/asset-mapper": "7.4.*",
         "symfony/console": "7.4.*",
@@ -37,6 +38,7 @@
         "symfony/string": "7.4.*",
         "symfony/translation": "7.4.*",
         "symfony/twig-bundle": "7.4.*",
+        "symfony/ux-icons": "^3.4",
         "symfony/validator": "7.4.*",
         "symfony/web-link": "7.4.*",
         "symfony/yaml": "7.4.*",
@@ -90,7 +92,7 @@
     },
     "extra": {
         "symfony": {
-            "allow-contrib": false,
+            "allow-contrib": true,
             "require": "7.4.*"
         }
     },