Closing vorta from GUI does not terminate running vorta command in terminal

[DaffyTheDuck]

When you run the vorta command from the terminal to launch new session and close the application from GUI instead of closing it from the terminal, the command vorta keeps running though the application is closed

How to reproduce ?

1. Launch vorta from terminal
2. Close it through GUI
3. See the terminal

Desktop

Ubuntu 22.04

Update!

I actually just found that it keeps running in background! But while closing the application it would be nice to prompt user whether he want's to continue the process or not 😄

[real-yfprojects]

See #1582.