panics cause shell to no longer echo input nor show commands

[kriswuollett]

After panic noted in #1100 the shell no longer echos keyboard input nor shows the command that would be executed if [Enter] is pressed.
This occurred for me on Ubuntu 22.04 x86_64 in both Code and Terminal apps when running in Unity window manager.

Expectation is that the shell should not be affected after a program crash.

Screencast.from.02-07-2023.12.42.37.PM.webm

[hugosantos]

Note to us: The challenge here is that terminal restoration is done by bubbletea. Which does perform cleanup on panics. But the panic is not observed by its goroutine.