Responsive Todo App with Vanilla JS

Hi everyone, there is my solution for this Todo App challenge. For me the most difficult parts were sorting and returning new arrays in <ul> tag, when I click buttons 'all', 'active' and 'complete' 😅 Do you have some ideas how to use "drag and drop API", when I change theme or click the buttons? Becouse in my solution it works, but only with DOMContentLoading... Thank you for your freedback.