[c3] can't ctrl-c out of waiting for new zone propagation

[lrapoport-cf]

see https://x.com/theo/status/1890634143085605199

[CarmenPopoviciu]

I have been trying to reproduce the behaviour via npm run create cloudflare@latest, with using both the Hello World Worker and Next.js starter templates. I am seeing the following:

• for the Hello World Worker starter template, the DNS propagation takes on average a bit over 10s (11s in this particular screenshot, though I was not able to capture it more accurately)

• for the Next.js starter template the DNS propagation times average at > 200s (we time out at 300s). This gets rather confusing for users I would imagine, since I'm not sure if they know what sort of propagation times to expect. This is something we can very easily action on by changing the copy to inform users that propagation times might take up to 2mins

• in terms of exiting this process, I have tried to ctrl+C at various points in time while waiting for DNS to propagate and for both starter projects I am experiencing the same: first ctrl+C does register the key press (^C in stdout) but does not exit the process (this is a bug and should be fixed), second ctrl+C does register the key press and does exit the process. I am seeing this behaviour consistently, over the > 10 projects I have tested with, and did not have to, at any point during my testing, have to manually kill the process

To tldr there are 2 concrete things I can action on here based on my findings:

1. make the copy adjustment to inform users about DNS propagation times being abt 2 mins
2. figure out why first ctrl+C does not exit the process and fix that