The scaf CLI should handle command line arguments such as --help

[hillairet]

🐛 Describe the bug

I didn't know how to get started so I ran scaf --help and it got me started on setting up the project. I didn't realize that it started creating my project with the name "--help".
That led to issues later on when it ran docker run --help instead of docker run myproject

💭 Expected Behavior

• scaf --help should return something useful. Same as Scaf should include a --help command line argument #323
• The scaf command line should handle any other command line argument and either stop and complain or ignore them explicitly with the message "Command line argument -g ignored"

🔁 Steps To Reproduce

1. Run scaf --help

Renaming the project name and the project slug doesn't override the --help name for the project

🌎 Environments

• Sandbox
• Staging
• Production

📝 Additional context

No response

📜 Relevant log output

📸 Screenshots