Use Shopify's default auth flow

[graygilmore]

Closes #2335

[shopify]

Oxygen deployed a preview of your gg-remove-auth-hijack branch. Details:

Storefront	Status	Preview link	Deployment details	Last update (UTC)
metaobjects	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:05 PM
custom-cart-method	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:04 PM
classic-remix	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:04 PM
Skeleton (skeleton.hydrogen.shop)	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:04 PM
third-party-queries-caching	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:05 PM
optimistic-cart-ui	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 16, 2024 4:04 PM

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[frandiox]

@graygilmore I've updated to cli-kit 3.64 in #2337 to surface the actual auth problem, and merged in this branch.
Since removing the login command is a big change for a patch release, I've reverted that and enhanced the logs a little bit.

[frandiox]

/snapit

[github-actions]

🫰✨ Thanks @frandiox! Your snapshot has been published to npm.

Test the snapshot by updating your package.json with the newly published version:

"@shopify/cli-hydrogen": "0.0.0-snapshot-20240716160423"

[frandiox]

/snapit

[github-actions]

🫰✨ Thanks @frandiox! Your snapshot has been published to npm.

Test the snapshot by updating your package.json with the newly published version:

"@shopify/cli-hydrogen": "0.0.0-snapshot-20240716163954"