chore: use cross-env to set env (#70)

* chore: use cross-env to setup env

* chore(deps): add missing fs-extra

* Revert "chore(deps): add missing fs-extra"

Author: cijiugechu

package.json

@@ -13,9 +13,9 @@
     "update-deps": "pnpm -r update -i -L",
     "update-local-deps": "pnpm update -r vite-plugin-react-pages vite-pages-theme-basic vite-pages-theme-doc --workspace --filter \"!./packages/create-project/**\"",
     "test": "playwright test -c ./test-setup",
-    "test-serve": "VITE_PAGES_MODE=serve pnpm test",
-    "test-build": "VITE_PAGES_MODE=build pnpm test",
-    "test-ssr": "VITE_PAGES_MODE=ssr pnpm test",
+    "test-serve": "cross-env VITE_PAGES_MODE=serve pnpm test",
+    "test-build": "cross-env VITE_PAGES_MODE=build pnpm test",
+    "test-ssr": "cross-env VITE_PAGES_MODE=ssr pnpm test",
     "test-debug": "pnpm test -- --debug",
     "build:docs": "pnpm --filter doc-site run ssr-for-deploy",
     "postinstall": "node ./scripts/linkBins.js",