chore: improve whisky discoverability on mac

[WangEdward]

https://github.com/Heroic-Games-Launcher/HeroicGamesLauncher/pull/3728#issuecomment-2105946706 Use the same version detection method as Whisky

Ping @ahmed2m. I do not have Whisky installed. Please download the CI build to see if this works.

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

• [x] Tested the feature and it's working on a current and clean install.
• [x] 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)