Feat: Add contacts

src/Menu/AdminMenuBuilder.php

@@ -87,6 +87,10 @@ class AdminMenuBuilder extends AbstractMenuBuilder
                         'route' => 'app_admin_system_document_index',
                         'title' => 'Dokumente',
                     ],
+                    [
+                        'route' => 'app_admin_system_contact_index',
+                        'title' => 'Ansprechpartner',
+                    ],
                 ],
             ],
         ];