src/theme/DocItem/index.tsx

import React from 'react';
import {HtmlClassNameProvider} from '@docusaurus/theme-common';
import {DocProvider} from '@docusaurus/theme-common/internal';
import DocItemMetadata from '@theme/DocItem/Metadata';
import DocItemLayout from '@theme/DocItem/Layout';
import type {Props} from '@theme/DocItem';

export default function DocItem(props: Props): JSX.Element {
  const docHtmlClassName = `docs-doc-id-${props.content.metadata.unversionedId}`;
  const MDXComponent = props.content;
  return (
    <DocProvider content={props.content}>
      <HtmlClassNameProvider className={docHtmlClassName}>
        <DocItemMetadata />
        <DocItemLayout>
          <MDXComponent />
        </DocItemLayout>
      </HtmlClassNameProvider>
    </DocProvider>
  );
}