The upper part of the Drawer is missing on smaller mobile screens

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. Click on the Hamburger icon, to open the Drawer

Expected results

The whole Drawer is displayed properly (no missing parts).

Actual results

The upper part of the Drawer is missing. This also causes the 'Close the drawer' button to be displayed partially, creating difficulties for the user using it.

The issue doesn't reproduce on a simulated device using Developer Tools, but only on a real device.