[BUG] Killing children results in zombie/defunct processes.

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When a process is killed via a SIGINT signal (sleep for example), the process is stopped and a new prompt shows, but the process enters a zombie like state. Running ps will show that the process is marked as <defunct>. Exiting the shell results in the zombie being fully killed.

Reproducing

1. Start the shell
2. Run the sleep command for 10 seconds (sleep 10)

   Note: This can be any amount of time

3. Press ^C to send a SIGINT signal to the sleep command.
4. Run the ps command ps
5. The output will look like this:

   $ ./bin/Debug/bensh
   ┌─────────────────────┐
   │ BenSH - Ben's Shell │
   └─────────────────────┘
   Run exit to quit.
   [DEBUG] CWD: /home/runner/bensh
   >> sleep 10
   ^C
   >> ps
   PID TTY          TIME CMD
   128 pts/1    00:00:00 bash
   132 pts/1    00:00:00 bensh
   133 pts/1    00:00:00 sleep <defunct>
   134 pts/1    00:00:00 ps
   >> exit
   $ ps
   PID TTY          TIME CMD
   128 pts/1    00:00:00 bash
   135 pts/1    00:00:00 ps
   $

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DEVEN!!!!

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Resolved in this commit.

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Nevermind