Auto update project id in `.shuttle/config.toml` on project creation

Describe the improvement

It would be nice to automatically update the .shuttle/config.toml file to the new project id once a new project is created.

Current Behavior

If I delete a project with:

shuttle project delete

And then I want to create another one:

shuttle project create

The .shuttle/config.toml project id will still be the old project id.

Desired behavior

Automatically update the project id in .shuttle/config.toml to the new project id.

Duplicate declaration

• I have searched the issues and this improvement has not been requested before.