[ns-ui] A full-width section divider rendered in real NAPLPS 'separated mosaic' mode: the same 2-wide x 3-tall sextant sub-cell grid this registry's divider-teletext-mosaic already ships in contiguous mode, but every lit sub-cell block is drawn inset by a genuine luminance gap on all sides, so the band read
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/divider-mosaic-split.json"