Separations between Live Data entries are not visible enough on mobile

Steps to reproduce

1. Access the XWiki instance on a mobile device with a smaller screen (e.g. Samsung Galaxy S23 Ultra or Iphone 14 Pro)
2. Open Drawer, go to Page Index or any other page that has a Live Data populated with some entries
3. Scroll down and observe the entries separations

Expected results

The separations between the entries in the Live Data are contrasting and easy visible.

Actual results

Between Live Data entries, the separation line is a little bit bolder than the others, with the same gray color, making it very difficult to be seen on the screen.