[Housekeeping] Add [SupportedOSPlatform] to AppBuilderExtensions#2488

TheCodeTraveler merged 4 commits into

mainCommunityToolkit/Maui:mainfrom

Add-`-SupportedOSPlatform]`-to-AppBuilderExtensionsCommunityToolkit/Maui:Add-`-SupportedOSPlatform]`-to-AppBuilderExtensionsCopy head branch name to clipboard