Escape key on the main menu wont exit the app

[Mystic-Slice]

Description

I agree with @Cervator on the 2nd point in issue #616 (about the Esc key closing the app itself). It seems very abrupt. I do not think the Esc key should close the app. But if it is needed, then there should be at least a confirmation dialog before quitting the app.

Testing

Open the app and try pressing the Esc key. The app won't close.

Pre Pull Request Checklist:

• Code has been scanned with SonarLint
• There are no errors present in the project
• Code has been formatted and indented
• Methods have appropriate Javadoc (How to write Javadoc)

[Cervator]

Yay less abrupt :-)