function toggledark() {
    if (localStorage.getItem('theme') === 'dark') {
        localStorage.removeItem('theme');
        document.body.classList.remove("dark");
        } else {
        localStorage.setItem('theme', 'dark');
        document.body.classList.add("dark");
    }
}
if (localStorage.getItem('theme') === 'dark') {
    document.body.classList.add('dark');
    document.getElementById('toggledark').checked = true;
} else {
    document.body.classList.remove('dark');
    document.getElementById('toggledark').checked = false;
}