feat: add styles to universal css /xappstyle.css
feat: change style /home.html, nchlog.html, chlog.html
add: jquery
feat: change error msg & remove logout method from login.py
feat: change position of staffname /chlog.html nchlog.html  and add background to universal css
refactor: add link to jquery and tidy up code /home.html
feat: change message position /login.py