- Bring back the corner fan-out controls; drop the in-dock settings tile.
- Regenerate public/dock/*.svg so the squircle fills the whole tile with
no inner margin.
- Dock icons are now real SVG files under public/dock/ (macOS squircle
look, active variants), so they can be replaced with custom art later.
- Full-bleed icons (DockIcon padding 0), fixed logo src to stop the
refresh flash.
- Remove the top menu bar entirely; relocate theme/language/sound (+admin)
into a corner control dock that expands on click.