React Sidebar Layout with Unique Navbar and Dark Mode

Crea-un-layout-que-tenga-un-sidebar-y-que-por-cada-pagina,-item-del-sidebar,-tenga-un-navbar-con-funcionalidades-unicas-para-cada-pagina,-necesito-un-layout-simple-y-funcional,-pero-que-tambien-sea-atractivo-y-si-puedes-con-dark-mode