all-in-one/php/public/toggle-dark-mode.js

// Function to toggle theme
function toggleTheme() {
    const currentTheme = document.documentElement.getAttribute('data-theme');
    const newTheme = (currentTheme === 'dark') ? 'light' : 'dark';
    document.documentElement.setAttribute('data-theme', newTheme);
    localStorage.setItem('theme', newTheme);

    // Change the icon based on the current theme
    const themeIcon = document.getElementById('theme-icon');
    themeIcon.textContent = newTheme === 'dark' ? '☀️' : '🌙'; // Switch between moon and sun icons
}

// Function to apply saved theme from localStorage
function applySavedTheme() {
    const savedTheme = localStorage.getItem('theme');
    if (savedTheme) {
        document.documentElement.setAttribute('data-theme', savedTheme);

        // Ensure the icon is set correctly based on the saved theme
        const themeIcon = document.getElementById('theme-icon');
        themeIcon.textContent = savedTheme === 'dark' ? '☀️' : '🌙';
    }
}

// Apply theme when the page loads
document.addEventListener('DOMContentLoaded', applySavedTheme);