fold-vertical from coolicons in Line with regular corners. collapse, compress, squeeze, inward, minimize, merge, flatten. Other styles and corners: @coolicons/<style>/<radius>/fold-vertical with line, duocolor, duotone, fill or bulk and sharp or round. Leave out regular, like @coolicons/fill/fold-vertical, and use @coolicons/fold-vertical for line with regular corners.
pnpm dlx shadcn@latest add "https://coolicons.cool/r/fold-vertical.json"