Settings: Remove BETA label for Desktop settings

[malmstein]

Task/Issue URL: https://app.asana.com/0/1201048563534612/1207326238853107/f

Description

Remove the BETA labels for Desktop browsers

Steps to test this PR

Settings

• [ ] Install app and open settings
• [ ] Verify that BETA label is removed from both desktop settings

UI changes

Before	After

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• To see the specific tasks where the Asana app for GitHub is being used, see below:
  • https://app.asana.com/0/0/1207326238853107

[malmstein]

• #4630 👈
• develop

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[malmstein]

Thanks @anikiki !