[request] fix ajax_replace_url which breaks if the url contains some quotes (that will be properly quoted but unquoted by the browser, breaking the js expression) by using a separated js function

if versions_map['cubicweb'][0] == (3, 7, 4):
    config['http-session-time'] *= 60
    config['cleanup-session-time'] *= 60
    config['cleanup-anonymous-session-time'] *= 60