chore: changed qwik default port to 5173

[nickytonline]

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Summary

npm init qwik@latest sets a new qwik app's local development port to 5173 to line up with changes to vite's recent port change. Given the project is fairly new, this should have minimal impact, if any to folks using Qwik on Netlify. This was originally part if #792, but since we're still discussing the change to the vite default port, I opted to put this in its own PR.

And if for some reason they are using the old port currently, a message will notify them that they can change the target port in the netlify.toml

Relates to #791

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[nickytonline]

I'm going to put this back to draft for the moment, because I'm not sure if this framework is meant to only be used with our Edge starter, https://github.com/BuilderIO/qwik/tree/main/starters/servers/netlify