Contribute the Copy Permalink command to the Copy As submenu

[egamma]

See the GitLens extension

[alexr00]

@eamodio would you be willing to rename the Gitlens "Copy As" submenu to just editor/context/copy?

https://github.com/eamodio/vscode-gitlens/blob/bbbbc017aa9fb258a3886e0300cb5c9b51f0c684/package.json#L8360-L8363

[eamodio]

Sure, can do.

[eamodio]

@alexr00 although in order for us to use editor/context/copy, core would need to add that as a built-in submenu -- otherwise we won't be able to target it. Because if we both attempt to contribute it either as a submenu or into editor/context it will error out, see below.

If we both attempt to contribute it as a submenu we will get the following error:
The editor/context/copy submenu was already previously registered

And if we both attempt to contribute the submenu to editor/context we will get the following error:
The editor/context/copy submenu was already contributed to the editor/context menu

[alexr00]

Hmm, as you say, looks like it should be added as a core menu. @joaomoreno is there a way to contribute a submenu in the core that only shows if it has items in it?

[joaomoreno]

Unfortunately we decided to go with: an empty submenu still renders as empty. We can look into changing that or having a setting for it. cc @jrieken