Show message in CLI when user is not connected to the internet after entering zk project [name] --ui [framework]

[ymekuria]

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[jasongitmail]

Background: We designed the CLI previously to work offline (from cache), but the UI framework install commands require internet access

[jasongitmail]

I implemented something similar for a personal project recently. My solution was to do a DNS lookup for a common domain that can be expected to be online (e.g. google.com) and if a result is returned, you're online.

It would be nice if this didn't occur unless an error occurred and were diagnosing it though, for privacy.