feat(ui): add a self-hosted Material Symbols icon subset

Icon renders Material Symbols Rounded at weight 300 from a subset font
that holds only the glyphs listed in packages/ui/src/icons/names.ts.
pnpm icons:build checks every name against Google's codepoints and
regenerates the font; a test keeps the manifest and the list in sync.
Icons are aria-hidden and untranslated, and directional ones mirror in
right-to-left layouts.

apps/web/src/features/applications/tile-color.ts

@@ -1,19 +0,0 @@
-// Deterministic accent color for a company's initials tile, shared by the board card and the
-// table row so the same company reads the same everywhere.
-const TILE_COLORS = [
-	"bg-rose-500",
-	"bg-orange-500",
-	"bg-amber-500",
-	"bg-emerald-500",
-	"bg-teal-500",
-	"bg-sky-500",
-	"bg-indigo-500",
-	"bg-violet-500",
-	"bg-fuchsia-500",
-];
-
-export function tileColor(seed: string) {
-	let hash = 0;
-	for (let i = 0; i < seed.length; i++) hash = (hash * 31 + seed.charCodeAt(i)) | 0;
-	return TILE_COLORS[Math.abs(hash) % TILE_COLORS.length];
-}