Support for spaces in Active Directory group names

[SvenAelterman]

Overview/Summary

Fix the storage account domain join script arguments to support spaces in AD group names.

This PR fixes/adds/changes/removes

1. Fixes #520

Breaking Changes

N/A

Testing Evidence

Successful deployment with an AD group name All Employees.

As part of this Pull Request I have

• [x] Read the Contribution Guide and ensured this PR is compliant with the guide
• [ ] Ensured the resource API versions in .bicep file/s I am adding/editing are using the latest API version possible
• [x] Checked for duplicate Pull Requests
• [x] Associated it with relevant GitHub Issues
• [ ] (AVD LZA Team Only) Associated it with relevant ADO Items
• [x] Ensured my code/branch is up-to-date with the latest changes in the main branch
• [x] Performed testing and provided evidence.
• [ ] Updated relevant and associated documentation (e.g. Contribution Guide, Module READMEs, Docs etc.)