Share a file via vscode.dev link

[tcz717]

Hi team,

I noticed it is very useful to share a file link to a remote repo. So that if we'd like to send someone a part of your code in chat or emails, they can quickly identify which code you are talking about.

Eg: we can share code via https://vscode.dev/github/microsoft/vscode/main/src/main.js?l18

I found we have permalink support for GitHub, but it will be better to have it in Azure repo and support adding code range

[joyceerhl]

I think this is related to the 'Share as...' menu exploration for this iteration #146672 cc @lychung7

[lychung7]

An idea is to add a share menu item in the File menu and bring over all the Copy As.. items into here along with a new Copy vscode.dev link.

Currently, users receive no confirmation after clicking on any of the copy link items. It would be nice to validate that the link has been copied to their clipboard.

[peter-fb]

Please don't add new items in a right-click menu unless you also provide a setting to disable this function. There are already too many items there and it seems the clutter just increases and increases.