feat: show more info on server start

[nozomuikuta]

Description

Resolves #18719

• Deprecate DevServer.printUrls and PreviewServer.printUrls.
• Add DevServer.printInfo and PreviewServer.printInfo
• Make the new methods print mode and loaded env file names on server start

I created this PR for v5 branch, but technically it can be applied to main branch too.

[y-nk]

i'm grateful for this PR, i hope it lands soon. thanks a ton @nozomuikuta