Switching to a different container does reset terminal

[ostfriese4]

Describe the bug
If you are using the in-app terminal and switch to a different container and back, everything you get a new shell, not the one you have been using. This is very annoying, especially if there are still any commands running in the old shell. The processes are not being killed, you only can no longer watch them.

To Reproduce
Steps to reproduce the behavior:

1. Create at least two containers
2. Open one container
3. Switch to the tab "Terminal"
4. Run some commands
5. Switch to another container
6. Switch back to the container your opened

Desktop (please complete the following information):

• OS: Arch
• Installation method: Flatpak
• App version: 1.4.0

[ranfdev]

That's a problem. I would still keep only one active terminal at a time, but kill the previous terminals, so that they don't linger in the background. I would add an alert that says "You are switching pages, this will close the terminal" or something like that. Because that's what many web interfaces for VM management do (eg. Incus).

[ranfdev]

I'm not sure how to handle this properly, because killing the distrobox enter process doesn't kill the child shell. See 89luca89/distrobox#966