Fix dunst config loading, modernize notification handling

- Point dunst to /etc/xdg/dunst/dunstrc via -conf flag (dunst with
  SYSCONFDIR=/etc does not search XDG_CONFIG_DIRS)
- Update dunstrc: fix legacy offset syntax, replace missing
  Tela-purple-dark icon theme with Colloid-Grey-Catppuccin-Dark
- Replace dunstify with notify-send in moonarch-cpugov for
  daemon-agnostic notifications, fix broken icon path
- Replace dbus-monitor based moonarch-dnd script with inline
  waybar polling (interval 2s), fixing process accumulation bug
- Add #custom-dnd to waybar CSS padding rule

defaults/bin/moonarch-cpugov

@@ -64,7 +64,7 @@ then
     # Execute the choice
     ${COMMANDS[$choice]}
 
-    dunstify --replace 553 -i "/usr/share/icons/zafiro-dark/devices/48/cpu.svg" "CPU Mode" "Set to $choice ${LABELS[$choice]}"
+    notify-send -h string:x-canonical-private-synchronous:cpugov -i cpu "CPU Mode" "Set to $choice ${LABELS[$choice]}"
 else
     echo "Unknown command: ${choice}" | rofi -dmenu -p "error"
 fi

defaults/bin/moonarch-dnd

@@ -1,27 +0,0 @@
-#!/usr/bin/env bash
-# ABOUTME: Waybar-Modul das den DND-Status von dunst als JSON ausgibt.
-# ABOUTME: Wird von der Waybar custom/dnd Config referenziert.
-set -euo pipefail
-trap '' PIPE
-
-readonly ENABLED=''
-readonly DISABLED=''
-
-dbus-monitor path='/org/freedesktop/Notifications',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged' --profile |
-  while read -r _; do
-    PAUSED="$(dunstctl is-paused)"
-    if [ "$PAUSED" == 'false' ]; then
-      CLASS="enabled"
-      TEXT="$ENABLED"
-      TOOLTIP="Notifications are on"
-    else
-      CLASS="disabled"
-      TEXT="$DISABLED"
-      TOOLTIP="Notifications are off"
-      COUNT="$(dunstctl count waiting)"
-      if [ "$COUNT" != '0' ]; then
-        TEXT="$DISABLED ($COUNT)"
-      fi
-    fi
-    printf '{"text": "%s", "class": "%s", "tooltip": "%s"}\n' "$TEXT" "$CLASS" "$TOOLTIP"
-  done