Description

Change the icon for macOS, the old icon was not in the middle of white space.

Related Issues / Pull Requests

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate)

Checklist

• If the key of a setting is changed, the old attribute is updated or it is resolved in SettingsUpdater.
• If there are changes of the text displayed in the UI, they are wrapped in tr() or QCoreApplication::translate().
• If needed, I have opened a pull request or an issue to update the documentation.
• If these changes are notable, they are documented in CHANGELOG.md.

Additional text