Feat: Add SubscriptionList

[mariana-caetano]

Description

To test locally:

1. Clone the repository.
2. Run in the terminal yarn install.
3. Change the branch to feat/subscription-list: git checkout feat/subscription-list.
4. Run Storybook: yarn storybook.
5. Go to http://localhost:6006/ and navigate to SubscriptionList in the left sidebar.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires change to documentation, which has been updated accordingly.

[github-actions]

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[PedroAntunesCosta]

I think we should improve error handling.

For fetch(), 4xx and 5xx responses are not errors. They represent an error on the part of the API, but they don't trigger the .catch() (98). This means that if there is any error in zapier, or one of the services it uses, and fetch() returns 500, the user will get a success message, when in fact the email won't be registered to the subscription list.

[PedroAntunesCosta]

The error treatment here is innacurate. checkEmail(email) can return false for reasons other than invalid emails:

• The RapidAPI request fails.
• The RapidAPI response is otherwise unusable.
• NEXT_PUBLIC_NEWSLETTER_API_KEY is missing - (E.g., I tested the component with storybook and entered my VTEX email. I got the 'invalid email' error message and this was probably the reason.) This is probably not an issue in production once the environment is correctly configured.