[macOS] Inconsistent systray menu behaviour

[HanaGemela]

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• [X] I checked for similar issues, but could not find any. I also checked the closed issues. I could not contribute additional information to any existing issue.
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Describe the QA issue

User can't quit when About dialog (or please authenticate dialog) is open and the app is in the background

ownCloud 5.0.0.12278, mac

Steps to reproduce the issue

1. Start the app
2. Open About dialog
3. Open another app, e.g. web browser
4. Quit the client from the system tray

Screenshots

No screenshot

Expected behavior

Quit option is not available - the same way as when the user click "Show owncloud". Then the option to Quit disappears

Actual behavior

Nothing happens

[HanaGemela]

@michaelstingl the entire system tray menu has different availability when the client is in the background. Please confirm what the expected behaviour is

[TheOneRing]

If I remember it correctly you opened an issue like that before. And we came to the conclusion its a Qt bug? When ownCloud with the modal dialog is active, the systray is correctly disabled, if the app is in the background its active (it should not be).

[TheOneRing]

https://github.com/owncloud/client/issues/10621#issuecomment-1491526640