CLI: pull needs to request or prompt for a local alias name when pulling a project

[josephjclark]

When I run openfn pull --beta, it'll create local project from a project id.

By default the project will be given a local alias of main, which gets written to main@app.openfn.org.yaml

We need to allow an --alias <name> argument which will configure that name. Later I can then to openfn checkout main

We should default the alias to main unless pulling a sandbox, when we use the sandbox project name

Users can pass --alias to override.

[josephjclark]

Later we probably need openfn project alias <oldname> <newname> to allow the alias to be changed

[josephjclark]

If pulling a non sandbox project, should we prompt users to pick a default alias? What's the point? It's probably just confusing to most users to be asked "what would you like to call this project?" when the project already has a name

[josephjclark]

Ah this sort of exists! You can pass --env right now to set the alias. I don't really think this is what env means now - but maybe this issue is simply: rename --env to --alias