CTRL + C/Signal ignored, app dont stop

[ghost]

Not just only that CTRL + C failing is a Bug, but actually the App ignores a standard Unix signal to kill itself, also a Bug.

Repro Steps:

• Run the app from terminal.
• Try to stop it by pressing CTRL + C (sends a Unix standard signal to stop).
• App wont stop, cant stop.

Fixed by https://github.com/dglent/meteo-qt/pull/61#pullrequestreview-83038

[ghost]

:thinking::thought_balloon: