docs: vite only replace __dirname, __filename, import.meta.url …

…in cjs (#7161)

Co-authored-by: Bjorn Lu <bjornlu.dev@gmail.com>

docs/config/index.md

@@ -27,14 +27,17 @@ You can also explicitly specify a config file to use with the `--config` CLI opt
 vite --config my-config.js
 ```
 
-Note that Vite will replace `__filename`, `__dirname`, and `import.meta.url`. Using these as variable names will result in an error:
+::: tip NOTE
+Vite will replace `__filename`, `__dirname`, and `import.meta.url` in **CommonJS** and **TypeScript** config files. Using these as variable names will result in an error:
 
 ```js
 const __filename = "value"
 // will be transformed to
 const "path/vite.config.js" = "value"
 ```
 
+:::
+
 ### Config Intellisense
 
 Since Vite ships with TypeScript typings, you can leverage your IDE's intellisense with jsdoc type hints: