docs: Incorrect param format for signTypedData

Is this a request for new documentation or updates to existing documentation
the documentation has a small mistake, the input is supposed to look like this:
smartAccountClient.signTypedData({
typedData: {
domain: {...

If existing documentation, a clear summary of what needs to be changed
A clear and concise description of what documentation should be changed, and a link to the resource that needs the update.

If new documentation, a clear summary of what needs to be added
A clear and concise description of what documentation should be added.

Additional context
Add any other context or screenshots about the feature request here.

Open the linked signTypedData documentation page and inspect its input example. Update the example to show the typedData wrapper around the domain and remaining signTypedData fields, then verify that the rendered documentation matches the reported format.