* docs: add missing export for CreateBundledProduct component
This commit adds a missing `export` statement to the `CreateBundledProduct` component in the "Create Form Component" example.
Without the `export`, readers copying the example wouldn't be able to use the component elsewhere in their project, which could be confusing. This ensures the example is complete and ready to use as-is.
* updated to default export for CreateBundledProduct component instead
Corrected an inaccurate example in the useQueryGraphStep tip within the review workflow documentation.
Updated the entity reference from "cart's promotions" to "product" to align with the actual code context.
The DATABASE_URL variable in the .env file examples was missing an equal sign, preventing it from parsing correctly. This fix ensures the environment variable is properly loaded and available during application runtime.