ML = `
            <div class="delete-popup-content">
                <h3>Clear Mind Map History</h3>
                <p>Are you sure you want to clear all mind maps from history? This action cannot be undone.</p>
                <div class="dialog-buttons">
                    <button class="dialog-button cancel" onclick="closeClearPopup()">Cancel</button>
                    <button class="delete-button confirm delete" onclick="confirmClear()">Clear All</button>
                </div>
            </div>
 