[FIX] Shutdown wine when game exits

[Etaash-mathamsetty]

This should be get tested well, I don't want games to randomly quit :)

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[CommandMC]

Did this actually do something? When calling a runner, we wait for stdout/stderr to be closed. This only happens once all Wine processes quit. So I wouldn't expect this to ever help, say, a stuck launcher or something

Closing for now, feel free to re-open/re-create if the change is helpful