doc: update documentation in fs.StatsFs

[Codder-lab]

No description provided.

[avivkeller]

Thanks for the PR! In order for this to land, the commit message must start with the subsystem (fs), following by an active verb.

For example, a valid commit for this PR would start with fs: add ...

[avivkeller]

Thanks for updating the commit message, but you need to rebase to overwrite the original message.

[Codder-lab]

Thanks for updating the commit message, but you need to rebase to overwrite the original message.

Look at #54309

[marco-ippolito]

actually being a doc only it should be doc:

[Codder-lab]

actually being a doc only it should be doc:

#54309 "Could you please verify if it is correct now?"

[avivkeller]

Suggested change

	```javascript
	```mjs

[Codder-lab]

Could you please verify all the changes?

[avivkeller]

Suggested change

	```javascript
	```mjs

[avivkeller]

Suggested change

	```javascript
	```mjs

[avivkeller]

Suggested change

	```javascript
	```mjs

[avivkeller]

Suggested change

**Example:**

[avivkeller]

Suggested change

**Example:**

[avivkeller]

Suggested change

**Example:**

[Codder-lab]

Can you please verify the changes?

[lpinca]

For the sake of simplicity, isn't it better to use top level await instead of an async function?