fix: lock screen on lid close without desktop flash on open

- Add lid-close.sh: starts hyprlock in background and immediately cuts
  the display via dpms off, so the display is dark while hyprlock renders
- William.conf: bind lid close to lid-close.sh; bind lid open to kill dim
  and turn display back on
- lock.sh: pass --no-fade-in to hyprlock
- hyprlock.conf: disable fadeOut animation
- hypridle.conf: add inhibit_sleep = 3 and use loginctl lock-session

hypr/scripts/lid-close.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+pkill -x dim
+hyprctl switchxkblayout all 0
+wpctl set-mute @DEFAULT_AUDIO_SINK@ 1
+hyprlock --no-fade-in &
+hyprctl dispatch dpms off
+wait
+wpctl set-mute @DEFAULT_AUDIO_SINK@ 0