feat(init): allow selecting package manager when creating new project

[DamianGlowala]

This PR adds prompting the user to select their preferred package manager and auto-installs project dependencies when using nuxi-ng init (without the '--offline' flag).

TODO:

• Create issue/PR upstream in https://github.com/unjs/nypm to provide utility for installing project dependencies.
  feat: allow installing project dependencies unjs/nypm#72
• Confirm the correctness of the dependencies installation logic based on --offline and/or --prefer-offline flags when using nuxi-ng init. (@pi0) Skip is via --no-install
• Investigate an issue with jumping terminal lines when interacting with selection prompt using arrow keys (and likely create an upstream issue on https://github.com/unjs/consola).

[pi0]

💯 Awesome addition!

I have made few fixes to improve prompt stability. Might need to check better later