feat: retry requests on network errors

[gikf]

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• My pull request has a descriptive title (not a vague title like Update README.md).
• My pull request targets the main branch of Chapter.

Closes #415

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• Adds RetryLink (https://www.apollographql.com/docs/react/api/link/apollo-link-retry/) to automatically retry requests on network errors. By default that's 5 tries.
• This will handle basic case from the related issue, when wild CORS error can appear during development, when client tries to open page while server restarts.

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[ojeytonwilliams]

Thanks @gikf, extra reliability can't hurt.