Screen backlight is on, when the device is powered off while charging

EDIT : still present on iodé 6.3-20250513-brax3 (user 1)

Tested on iodé 6.3-20250502-brax3 (beta 10)

When charging the device while it is powered off, the screen briefly shows the charging status, then turns black, but the screen backlight stays on, meaning the screen is not actually off.

How to reproduce:

1. Power off the device
2. Plug it into a charger
3. Wait after the charge animation appears

Expected behavior: The screen should show the charge status briefly, then fully turn off, with the screen turning back on only when pressing the power button.