fix overriding getElementById on document

    const elems = document.getElementsByTagName('gradio-app')

    const elem = elems.length == 0 ? document : elems[0]

    elem.getElementById = function(id){ return document.getElementById(id) }

    if (elem !== document) elem.getElementById = function(id){ return document.getElementById(id) }

    return elem.shadowRoot ? elem.shadowRoot : elem

}