Hide the Available tab shown in the Visual Studio Installer

This policy determines whether the Available tab in the installer is visible or not. The Available tab contains suggested products that can be installed by the Visual Studio Installer. If set to 1 (enabled), then users will be prevented from seeing the Available Tab, and thus will not have an ability to install new products from the Available Tab using the installer UI. Users will still be able to install products from the command line or directly through the bootstrapper. If set to 0 (disabled) or missing entirely, users will be able to see the Available Tab and freely install new products that are advertised on the installer UI. Note: This is the default behavior. This functionality requires the Visual Studio 2022 version 17.6 installer to be installed on the client machine. For more information, see https://aka.ms/vs/setup/policies.