fix: workaround for web render with chromium headless mode

Chrome 128 change default headless mode to `new`.
The new headless mode has issue with window-size.
This is a temporary workaround that swiches back to the old headless mode while upstream fixes the issue.

See also #17

fox-neat-wallpaper.sh

@@ -185,7 +185,7 @@ generate_wallpaper () {
 	RENDER_URL="${RENDER_URL}&font=${config[font-family]}"
 	# generate image of background text
 	# chromium spams lots of undesired output while attempting to use gpu acceleration. to avoid that output is redirected to /dev/null
-	chromium --headless --hide-scrollbars --window-size="$IMAGE_SIZE_X,$IMAGE_SIZE_Y" --screenshot=$IMG_NAME "$RENDER_URL" &> /dev/null
+	chromium --headless=old --hide-scrollbars --window-size="$IMAGE_SIZE_X,$IMAGE_SIZE_Y" --screenshot=$IMG_NAME "$RENDER_URL" &> /dev/null
 	# add logo to the background
 	magick $IMG_NAME -size $(expr $IMAGE_SIZE_X \* $LOGO_SIZE_PRECENT / 100)x -background none ${config[logo-image]} -gravity center -extent $IMAGE_SIZE -layers flatten $IMG_NAME
 	# move the created wallpaper to user folder