Support Shell Access

[anilmurty]

Is your feature request related to a problem? Please describe.
Being able to execute commands from a remote Shell interface is important for certain specific tasks, like being able to run ML/ AI workloads and tweak them sometimes or checking on files when running a static site or setting up a validator etc

Describe the solution you'd like
Detailed Spec TBD but this would essentially have to support CLI commands and be exposed in the below section of the UI: