[WIP] Add possible return values of the string

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add possible return values of the string </issue_title>
<issue_description>I would love to have the information about possible values being returned - for example "Windows.Xbox", "Windows.Mobile", "Windows.Desktop" and other potentials, and under what circumstances they are returned.

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Document Details

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• ID: 4c62c532-03ab-7ceb-f17c-2071b848e696
• Version Independent ID: 40064398-4737-7eeb-be33-5ba52b0acf3c
• Content: AnalyticsVersionInfo.DeviceFamily Property (Windows.System.Profile) - Windows UWP applications
• Content Source: winrt-api-build/xml/Windows.System.Profile/AnalyticsVersionInfo.xml
• Product: uwp
• Technology: winrt-reference
• GitHub Login: @hickeys
• Microsoft Alias: hickeys</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add possible return values of the string  #1747

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