Error Handling: panic when running `tfm cp ws --state` when the ws does not exist.

[carljavier]

Describe the bug
i ran into a panic when running tfm cp ws --state when the ws does not exist.

To Reproduce

try and copy a state when the WS does not exit in destination

Expected behavior
We probably should see if a check or user error message can remind the user to run tfm cp ws first before trying to copy the other features of a ws.

[Josh-Tracy]

This seems to have been resolved at some point.