Function generateLegalPageSEO

Returns {
    alternates: { canonical: string; languages: { de: string; en: string } };
    authors: { name: string }[];
    creator: string;
    description: string;
    keywords: string[];
    metadataBase: URL;
    openGraph: {
        description: string;
        images: { alt: string; height: number; url: string; width: number }[];
        locale: string;
        siteName: string;
        title: string;
        type: "website";
        url: string;
    };
    publisher: string;
    robots: {
        follow: boolean;
        googleBot: {
            follow: boolean;
            index: boolean;
            "max-image-preview": "large";
            "max-snippet": number;
            "max-video-preview": number;
        };
        index: boolean;
    };
    title: { default: string; template: string };
    twitter: {
        card: TwitterCardType;
        creator: string;
        description: string;
        images: string[];
        title: string;
    };
}