Cargador de valores + Plantilla de vista previa

// composer.json
{
    "require": {
        "php": ">=8.2",
        "ext-ctype": "*",
        "ext-iconv": "*",
        "babdev/pagerfanta-bundle": "^3.7", // v3.7.0
        "doctrine/doctrine-bundle": "^2.7", // 2.7.0
        "doctrine/doctrine-migrations-bundle": "^3.2", // 3.2.2
        "doctrine/orm": "^2.13", // 2.13.3
        "easycorp/easyadmin-bundle": "^4.4", // v4.4.1
        "netgen/layouts-contentful": "^1.3", // 1.3.2
        "netgen/layouts-standard": "^1.3", // 1.3.1
        "pagerfanta/doctrine-orm-adapter": "^3.6",
        "sensio/framework-extra-bundle": "^6.2", // v6.2.8
        "stof/doctrine-extensions-bundle": "^1.7", // v1.7.0
        "symfony/console": "5.4.*", // v5.4.14
        "symfony/dotenv": "5.4.*", // v5.4.5
        "symfony/flex": "^1.17|^2", // v2.2.3
        "symfony/framework-bundle": "5.4.*", // v5.4.14
        "symfony/monolog-bundle": "^3.0", // v3.8.0
        "symfony/proxy-manager-bridge": "5.4.*", // v5.4.6
        "symfony/runtime": "5.4.*", // v5.4.11
        "symfony/security-bundle": "5.4.*", // v5.4.11
        "symfony/twig-bundle": "5.4.*", // v5.4.8
        "symfony/ux-live-component": "^2.x-dev", // 2.x-dev
        "symfony/ux-twig-component": "^2.x-dev", // 2.x-dev
        "symfony/validator": "5.4.*", // v5.4.14
        "symfony/webpack-encore-bundle": "^1.15", // v1.16.0
        "symfony/yaml": "5.4.*", // v5.4.14
        "twig/extra-bundle": "^2.12|^3.0", // v3.4.0
        "twig/twig": "^2.12|^3.0" // v3.4.3
    },
    "require-dev": {
        "doctrine/doctrine-fixtures-bundle": "^3.4", // 3.4.2
        "symfony/debug-bundle": "5.4.*", // v5.4.11
        "symfony/maker-bundle": "^1.47", // v1.47.0
        "symfony/stopwatch": "5.4.*", // v5.4.13
        "symfony/web-profiler-bundle": "5.4.*", // v5.4.14
        "zenstruck/foundry": "^1.22" // v1.22.1
    }
}