[Feature Request] Add CPU Processes

Required prerequisites

• I have searched the Issue Tracker that this hasn't already been reported. (comment there if it has.)
• I have tried the latest version of nvitop in a new isolated virtual environment.

Motivation

Would like to be able to also see top CPU processes also alongside the GPU processes. Otherwise need to run 'top' to get that output. Rather run one command to see everything.

Solution

Would be good to add the CPU processes just like GPU processes section.

Alternatives

No response

Additional context

No response