Read Codegen config from GraphQL config file

[frandiox]

We currently allow having a <root>/codegen.ts file with custom codegen config. However, it is common in the community placing this config in <root>/.graphlrc.js instead.

This convention makes it easier to add new GraphQL projects, such as Admin API or a custom CMS.

Example of a .graphqlrc.ts that uses our Codegen internally (within @shopify/api-codegen-preset): https://github.com/Shopify/shopify-app-template-remix/blob/main/.graphqlrc.ts

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I'm also changing the GraphQL config file format in the skeleton template to TS instead of YAML, since this makes it easier to add new projects for Codegen.

[shopify[bot]]

Oxygen deployed a preview of your fd-grahqlrc-codegen branch. Details:

Storefront	Status	Preview link	Deployment details	Last update (UTC)
classic-remix	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM
metaobjects	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM
third-party-queries-caching	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM
Skeleton (skeleton.hydrogen.shop)	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM
optimistic-cart-ui	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM
custom-cart-method	✅ Successful (Logs)	Preview deployment	Inspect deployment	July 10, 2024 4:57 AM

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