fix: merge props in correct order, fix vitest configuration

Author: zemd

package.json

@@ -53,6 +53,7 @@
     "@testing-library/react": "^16.2.0",
     "@types/react": "^19.0.10",
     "@types/react-dom": "^19.0.4",
+    "@vitejs/plugin-react": "^4.4.1",
     "@zemd/eslint-react": "^1.0.5",
     "@zemd/github-readme": "^0.0.5",
     "@zemd/tsconfig": "^1.3.0",