[TS] Sandbox methods missing from docs

[RichardoC]

Describe the bug

https://www.daytona.io/docs/typescript-sdk/sandbox/#sandboxinstance is missing the attributes .fs .process etc, which can be used for filesystem and process operations

To Reproduce
N/A

Expected behavior
All attributes and methods of the sandbox instance in typescript to be documented

Screenshots
N/A

Environment (required fields):

• Deployment: Production
• Daytona client: N/A

Additional context
Add any other context about the problem here.

[RichardoC]

It's also not clear that [sandboxInstance.fs] is the same as https://www.daytona.io/docs/typescript-sdk/file-system/