Allow upgrading with WinGet

[PtJade-Ceramic]

Prerequisites

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Summary

Allow the user to choose to upgrade with WinGet when new version is available

Proposed Design

When new version is available,

1. Check whether WinGet is available (by checking the version of the operating system and compare it to those supporting WinGet for example).
2. If so, add a button Install with WinGet to the bar of notification, which enters the following command when clicked:

   Start-Process winget.exe -ArgumentList 'upgrade --id Microsoft.PowerShell -s winget' -NoNewWindow

[andyleejordan]

Are other VS Code extensions upgradeable with WinGet?

[JustinGrote]

While theoretically possible, vscode already has robust extension management and it can be handled via the command line --install-extension switch, so I would say this should go in the wontfix bucket as we'd have to own a manifest and keep it up to date.