migrate to soapstone

packages/website/package.json

@@ -45,12 +45,12 @@
     "react-dom": "^19.2.4",
     "react-error-boundary": "^6.1.3",
     "react-promise-suspense": "^0.3.4",
+    "soapstone": "^1.0.0",
     "three": "^0.180.0",
     "three-stdlib": "^2.36.0",
     "transliteration": "^2.6.1",
     "typescript": "^5.9.3",
     "urlon": "^3.1.0",
-    "varuna": "workspace:*",
     "vite": "^7.1.9"
   }
 }