[FEATURE] asyncapi new is not consistent with other commands

[Adi-204]

Why do we need this improvement?

Currently, the asyncapi new and asyncapi new file commands perform the same function, which can cause confusion for users. To enhance the CLI's usability and provide a distinct purpose for the new command.

With some other CLI commands:
asyncapi config
asyncapi generate

They provide USAGE, DESCRIPTION and COMMANDS associated with them.

How will this change help?

To enhance the CLI's usability and provide a distinct purpose for the new command.

Screenshots

No response

How could it be implemented/designed?

Same as asyncapi generate.

🚧 Breaking changes

No

👀 Have you checked for similar open issues?

• I checked and didn't find a similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue?

Yes I am willing to submit a PR!

[Adi-204]

Waiting for issue approval by maintainers. Please assign me the issue @derberg

[derberg]

I'm not a maintainer, please check CODEOWNERS file

[Adi-204]

I wanted to kindly follow up on this issue as I posted it last week and haven't received a response yet. I understand that you might be busy, but I would really appreciate any updates. Please let me know if there's anything I can do to help move this forward.