Add option to create storefront in h2 link CLI command

[aswamy]

NOTE: error showing when an app isn't installed is in this PR: https://github.com/Shopify/core-issues/issues/57139

WHY are these changes introduced?

• Adds the ability to create a storefront on Admin by doing h2 link
  • The first choice when linking a storefront is to create a new storefront
• The default name chosen when creating a storefront is the local storefront's directory name
  • We titleize the directory name so it's more humanized. E.g. demo-storefront will become Demo Storefront. If the directory name can't be titleized, we default to Hydrogen Storefront

WHAT is this pull request doing?

• Adding the ability to create a new storefront on Admin and link a local storefront to it
• Update the existing h2 link tests by splitting it up between linking existing storefront vs creating and linking a new storefront

HOW to test your changes?

• You can run h2 init with a production copy of the h2 command
• Checkout this PR branch and navigate to packages/cli and run
  • npm i
  • npm run build
• From the packages/cli directory, run h2 link --path=/path/to/your/project
  • You will be provided with the following new prompts

When job to create API tokens fails (this can't be resolved by the user):

Post-merge steps

Checklist

• I've read the Contributing Guidelines
• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've added a changeset if this PR contains user-facing or noteworthy changes
• I've added tests to cover my changes
• I've added or updated the documentation

[graygilmore]

Haven't had a chance to try it out but overall this is looking pretty good! We should get @gfscott and @mynameisadamf to have a look, too.

[frandiox]

LGTM, thanks!

Do we want to consider titleizing the text so if directory is named demo-storefront, the default name given is Demo Storefront?

I think that's a good idea 👍

---

Visually I'm not sure if these options are different enough 🤔
Not blocking tho, the visual department can wait.

Maybe more of a question for @mynameisadamf

We can apply styles on 1 single choice but I think they don't look very nice (and the number on the left doesn't change):

[aswamy]

Force push update:

• fix bug in waitForJob where reject was never hit
• user-errors lib now uses AbortError instead of renderWarning
• directory.ts will help generated a default storefront name on Admin based on user's project's directory
• minor clean up for tests in link.test.ts

[graygilmore]

🎉

[graygilmore]

Forgot one more question: will we be handling the scenario where the app is not installed in another PR?

[aswamy]

Yes - but i also want to discuss the flow on slack since we aren't using the create method anymore.