[SYNC] feat: allow declaring dirname (#9154)

[github-actions[bot]]

feat: allow declaring dirname (#9154) (1e078ad)

---

+++ b/docs/guide/env-and-mode.md
@@ -60,7 +60,7 @@ console.log(import.meta.env.VITE_SOME_KEY) // 123
console.log(import.meta.env.DB_PASSWORD) // undefined
```
-If you want to customize env variables prefix, see [envPrefix](/config/index#envprefix) option.
+If you want to customize env variables prefix, see [envPrefix](/config/shared-options.html#envprefix) option.
:::warning SECURITY NOTES