Add vitest

Author: antonmedv

package.json

@@ -11,15 +11,15 @@
   ],
   "scripts": {
     "build": "tsc",
-    "test": "tsc && uvu",
+    "test": "tsc && vitest",
     "release": "release-it --access public"
   },
   "devDependencies": {
     "css.escape": "^1.5.1",
     "jsdom": "^25.0.1",
     "release-it": "^17.10.0",
     "typescript": "5.7.2",
-    "uvu": "^0.5.6"
+    "vitest": "^2.1.8"
   },
   "author": "Anton Medvedev <anton@medv.io>",
   "license": "MIT",