Load redocly in both theme and plugin

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Latest commit: 70d2fe160b563e42a37846ae1495153af7c225d6

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

This PR includes changesets to release 3 packages

| Name | Type | | ----------------------- | ----- | | docusaurus-plugin-redoc | Minor | | docusaurus-theme-redoc | Minor | | redocusaurus | Minor |

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Name	Status	Preview	Comments	Updated
redocusaurus	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Feb 10, 2023 at 9:28PM (UTC)

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This pull request is automatically built and it is testable by installing redocusaurus@v0.0.0-test-20230210212834.

For commit b64607b4745db275ba313347505509fe7ffb423d.