api.sia.tech state API doc update

[timrettop]

Current Behavior

https://api.sia.tech/hostd#32ef7651-c2c1-43c6-89d3-f17c188b4667

Indicates API method at /api/state/host however its currently at /api/state

Also a few fields in the example response don't seem to exist anymore.

Expected Behavior

Indicated above

Steps to Reproduce

No response

Version

v2.0.2

What operating system did the problem occur on (e.g. Ubuntu 22.04, macOS 12.0, Windows 11)?

Ubuntu host - docker

Anything else?

No response