nvm ls-remote should show "node" / "stable" alias

[jdforsythe]

See #2785 (comment)

nvm ls-remote command should show what the node / stable alias would install, just as it shows what the various lts aliases would install.

[ljharb]

Specifically, I think that while formatting the list of remote versions, which we currently annotate with LTS tags, it would be really nice to also annotate with the local alias name(s) that would resolve to it.