Gen2 React SDK: Content overrides break during preview

[nathanforce]

Describe the bug

The Gen2 React SDK accepts content as a prop but during preview (and in visual editor) implicitly expects that content to be an unmodified response from the Content API. If a user manipulates the content api response before passing to the Content component, for example removing items from blocks or using something like transformComponents from @builder.io/utils, the sdk will refetch fresh content from the API and merge that with the manipulated content, resulting in unexpected behavior.

https://github.com/BuilderIO/builder/blob/main/packages/sdks/src/components/content/components/enable-editor.lite.tsx#L307-L321

To Reproduce Steps to reproduce the behavior:

1. Fetch content from Content API
2. Modify the content somehow, for example delete a block content.data.blocks = content.data.blocks.slice(1)
3. Pass this content to <Content content={content}>
4. Preview the page

Expected behavior I expect to be able to manipulate the content fetched from the API as needed for my use case or opt out of the refetching behavior linked above.

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