Improve CCS of WebUI

[nicolargo]

Disable scrolling:

.noscroll { 
  overflow: hidden;
}

Source: https://stackoverflow.com/questions/9280258/prevent-body-scrolling-but-allow-overlay-scrolling

Put time in bottom:

.bottom {
    position: absolute;
    bottom: 0px;
}

Source: https://www.geeksforgeeks.org/how-to-position-a-div-at-the-bottom-of-its-container-using-css/

[nicolargo]

Adapt div height uppon screen size: https://stackoverflow.com/questions/44961092/dynamic-panel-height-based-on-screen-size

ex: https://playcode.io/2155930

[nicolargo]

Merged into develop