[BUG]: Battery applet setting 0 brightness is turning "off" the display.

[l-const]

Cosmic-applets version:

Specific applet that this is regarding (if applicable):

Issue/Bug description:

Steps to reproduce:
set 0 to display brightness
Expected behavior:
Clamp the value to a "safe" min value
Other notes:

Other desktop environments seem to have fix this issue and do a bit of processing, as an example i found what the xfce desktop does here:

https://github.com/xfce-mirror/xfce4-power-manager/blob/3707578fbed608a1d275d7bf32eb6b299f657a01/common/xfpm-brightness.c#L123-L158

/*
 * Some laptops (and mostly newer ones with intel graphics) can turn off the
 * backlight completely. If the user is not careful and sets the brightness
 * very low using the slider, he might not be able to see the screen contents
 * anymore. Brightness keys do not work on every laptop, so it's better to use
 * a safe default minimum level that the user can change via the settings
 * editor if desired.
 */
void
xfpm_brightness_set_min_level (XfpmBrightness *brightness,
                               gint32 level)
{
  XfpmBrightnessPrivate *priv = get_instance_private (brightness);
  gint32 max_min;

  g_return_if_fail (XFPM_BRIGHTNESS (brightness));

  /* MIN_BRIGHTNESS_SLIDER_MIN_LEVEL = auto, we set the minimum as 10% of delta */
  if (level == MIN_BRIGHTNESS_SLIDER_MIN_LEVEL)
  {
    priv->min_level = priv->hw_min_level + MAX (priv->step, (priv->max_level - priv->hw_min_level) / 10);
    XFPM_DEBUG ("Setting default min brightness (%d) above hardware min (%d)", priv->min_level, priv->hw_min_level);
    return;
  }

  max_min = priv->max_level - priv->step;
  if (level < priv->hw_min_level || level > max_min)
  {
    XFPM_DEBUG ("Set min brightness (%d) clamped to admissible values [%d, %d]", level, priv->hw_min_level, max_min);
    priv->min_level = CLAMP (level, priv->hw_min_level, max_min);
    return;
  }

  XFPM_DEBUG ("Setting min brightness at %d", level);
  priv->min_level = level;
}

[l-const]

Found this gnome extension that does something similar here: https://github.com/F-i-f/soft-brightness?tab=readme-ov-file#minimum-brightness .