feat(scripts): add nomarchy-sync and improve theme scripts

- Create nomarchy-sync for backing up declarative config and dynamic state
- Update theme scripts with improved IPC feedback (swww img transition)

bin/nomarchy-theme-set

@@ -25,7 +25,7 @@ fi
 
 mkdir -p "$STATE_DIR"
 
-if [ ! -d "$THEMES_DIR/$THEME_NAME" ] && ! [[ "$THEME_NAME" == "dracula" || "$THEME_NAME" == "nord" ]]; then
+if [ ! -d "$THEMES_DIR/$THEME_NAME" ] && ! [[ "$THEME_NAME" == "nord" ]]; then
   echo "Theme '$THEME_NAME' not found in $THEMES_DIR"
   # Check if it exists in the palettes file
   # (Assuming nomarchy-palettes.nix is imported in Nix)