[Api docs] Display responses for all request data types

[timonrey]

Description of changes Displays responses for all request data types. So far, we only allowed displaying the response details when the request data type is application/json or application/x-www-form-urlencoded.

Link original ticket closes #2051

Screenshot of changes (if applicable) link to the smoke test: https://docskit-tt-display-responses-on-structured-data-types.commercetools.vercel.app/api-docs-smoke-test/endpoints/endpoints-for-resource#projectkeyresourceimages

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🦋 Changeset detected

Latest commit: 8e2e432fdf42986f8fccbb7fd509ac8eae8ac3d7

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

This PR includes changesets to release 2 packages

| Name | Type | | ------------------------------------------ | ----- | | @commercetools-docs/gatsby-theme-api-docs | Patch | | @commercetools-website/api-docs-smoke-test | Patch |

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Preview URLs:

• https://docskit-tt-display-responses-on-structured-data-types.commercetools.vercel.app (permalink to the last build of this branch)
• https://docskit-sha-1a89dc773883e9445f2f62e63cb342fae7c0c8b1.commercetools.vercel.app (this commit)