feat: remove the need of using the `BIGCOMMERCE_ACCESS_TOKEN`

[chanceaclark]

What/Why?

[!TIP] Reviewing by commit will be helpful.

Removes the need of using the BIGCOMMERCE_ACCESS_TOKEN to fetch any data. If the environment variable is present, it'll fetch shipping zone from the management API, otherwise it'll regress back to fetching all countries and states.

Testing

With an access token

Without an access token

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: f0690e6c08f484a6a1e4e1721b08524f8926e943

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

| Name | Type | | ---------------------------- | ----- | | @bigcommerce/catalyst-core | Minor | | @bigcommerce/catalyst-client | Minor |

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Name	Status	Preview	Comments	Updated (UTC)
catalyst-latest	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 14, 2024 3:30pm

6 Skipped Deployments

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **catalyst** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst/8mezytoYhfKAKCjcBgNBuZ1cn4n2)) | | | Aug 14, 2024 3:30pm | | **catalyst-1millionproducts-store** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst-1millionproducts-store/DMAyp5YjdnUo2JqHBoWE7uHVmBQc)) | [Visit Preview](https://catalyst-1millionproducts-store-git-9599d7-bigcommerce-platform.vercel.app) | | Aug 14, 2024 3:30pm | | **catalyst-au** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst-au/9ruhjovZo5vsqjQUkophoMZ2KkaC)) | [Visit Preview](https://catalyst-au-git-chore-shipping-zones-bigcommerce-platform.vercel.app) | | Aug 14, 2024 3:30pm | | **catalyst-test-store** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst-test-store/DXgiuZjYu9PJ5UA2y6USEXANHiG5)) | [Visit Preview](https://catalyst-test-store-git-chore-shipp-590252-bigcommerce-platform.vercel.app) | | Aug 14, 2024 3:30pm | | **catalyst-uk** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst-uk/3AxVXtAV9kbn7DBMmvKJTQYJYEEQ)) | [Visit Preview](https://catalyst-uk-git-chore-shipping-zones-bigcommerce-platform.vercel.app) | | Aug 14, 2024 3:30pm | | **catalyst-unstable** | ⬜️ Ignored ([Inspect](https://vercel.com/bigcommerce-platform/catalyst-unstable/YE62ZRhnBhRn7kztfEtNAJuDmToE)) | [Visit Preview](https://catalyst-unstable-git-chore-shipping-zones-bigcommerce-platform.vercel.app) | | Aug 14, 2024 3:30pm |

[github-actions[bot]]

⚡️🏠 Lighthouse report

Lighthouse ran against https://catalyst-latest-1jbr7n25g-bigcommerce-platform.vercel.app

🖥️ Desktop

We ran Lighthouse against the changes on a desktop and produced this report. Here's the summary:

Category	Score
🟢 Performance	93
🟢 Accessibility	100
🟢 Best practices	96
🟠 SEO	82

📱 Mobile

We ran Lighthouse against the changes on a mobile and produced this report. Here's the summary:

Category	Score
🟠 Performance	85
🟢 Accessibility	100
🟢 Best practices	96
🟠 SEO	85