docs: fix typo in __dirname and __filename options (#7139)

Author: monkbroc

src/content/configuration/node.mdx

@@ -54,26 +54,26 @@ Options:
 
 ## node.\_\_filename
 
-`boolean` `'mock' | 'warn-mock' | 'node_module' | 'eval-only'`
+`boolean` `'mock' | 'warn-mock' | 'node-module' | 'eval-only'`
 
 Options:
 
 - `true`: The filename of the **input** file relative to the [`context` option](/configuration/entry-context/#context).
 - `false`: Webpack won't touch your `__filename` code, which means you have the regular Node.js `__filename` behavior. The filename of the **output** file when run in a Node.js environment.
 - `'mock'`: The fixed value `'/index.js'`.
 - `'warn-mock'`: Use the fixed value of `'/index.js'` but show a warning.
-- `node_module`: Replace `__filename` in CommonJS modules to `fileURLToPath(import.meta.url)` when `output.module` is enabled.
+- `'node-module'`: Replace `__filename` in CommonJS modules to `fileURLToPath(import.meta.url)` when `output.module` is enabled.
 - `'eval-only'`
 
 ## node.\_\_dirname
 
-`boolean` `'mock' | 'warn-mock' | 'node_module' | 'eval-only'`
+`boolean` `'mock' | 'warn-mock' | 'node-module' | 'eval-only'`
 
 Options:
 
 - `true`: The dirname of the **input** file relative to the [`context` option](/configuration/entry-context/#context).
 - `false`: Webpack won't touch your `__dirname` code, which means you have the regular Node.js `__dirname` behavior. The dirname of the **output** file when run in a Node.js environment.
 - `'mock'`: The fixed value `'/'`.
 - `'warn-mock'`: Use the fixed value of `'/'` but show a warning.
-- `node_module`: Replace `__dirname` in CommonJS modules to `fileURLToPath(import.meta.url + "/..")` when `output.module` is enabled.
+- `'node-module'`: Replace `__dirname` in CommonJS modules to `fileURLToPath(import.meta.url + "/..")` when `output.module` is enabled.
 - `'eval-only'`