Improves description of DisplayGroup & Group parameters of *-NetFirewallRule cmdlets

[exchange12rocks]

PR Summary

For a long time the documentation haven't explained clearly the relationship between the Group and DisplayGroup properties of Windows Firewall rules and the corresponding cmdlet parameters. With this PR I hope to bring more clarity into explanation of those terms.

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributors guide.
• Style: This PR adheres to the style guide.

[github-actions]

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[learn-build-service-prod]

Learn Build status updates of commit 725e028:

✅ Validation status: passed

File	Status	Preview URL	Details
docset/winserver2016-ps/NetSecurity/Copy-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Disable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Enable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Get-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/New-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Remove-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Rename-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/NetSecurity/Set-NetFirewallRule.md	✅Succeeded	View (WindowsServer2016-ps)
docset/winserver2019-ps/NetSecurity/Copy-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Disable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Enable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Get-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/New-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Remove-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Rename-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/NetSecurity/Set-NetFirewallRule.md	✅Succeeded	View (WindowsServer2019-ps)
docset/winserver2022-ps/NetSecurity/Copy-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Disable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Enable-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Get-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/New-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Remove-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Rename-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/NetSecurity/Set-NetFirewallRule.md	✅Succeeded	View (WindowsServer2022-ps)
docset/winserver2025-ps/NetSecurity/Copy-NetFirewallRule.md	✅Succeeded	View (WindowsServer2025-ps)

This comment lists only the first 25 files in the pull request.
For more details, please refer to the build report.