panel-top from coolicons in Line with regular corners. header, toolbar, layout, dock, pane. Other styles and corners: @coolicons/<style>/<radius>/panel-top with line, duocolor, duotone, fill or bulk and sharp or round. Leave out regular, like @coolicons/fill/panel-top, and use @coolicons/panel-top for line with regular corners.
pnpm dlx shadcn@latest add "https://coolicons.cool/r/panel-top.json"