Merge pull request #25157 from kripod/patch-1

Blocks: Fix Subtitle block for unattached docs pages
(cherry picked from commit c82e136)

Author: shilman

code/addons/docs/template/stories/docs2/Title.mdx

@@ -1,7 +1,9 @@
-import { Meta } from '@storybook/addon-docs';
+import { Meta, Subtitle } from '@storybook/addon-docs';
 
 <Meta title="Yabbadabbadooo" />
 
 # Docs with title
 
+<Subtitle>Subtitle</Subtitle>
+
 hello docs

code/ui/blocks/src/blocks/Subtitle.tsx

@@ -9,8 +9,7 @@ interface SubtitleProps {
 
 export const Subtitle: FunctionComponent<SubtitleProps> = ({ children }) => {
   const docsContext = useContext(DocsContext);
-  const { parameters } = docsContext.storyById();
-  const content = children || parameters?.componentSubtitle;
+  const content = children || docsContext.storyById().parameters?.componentSubtitle;
 
   return content ? (
     <PureSubtitle className="sbdocs-subtitle sb-unstyled">{content}</PureSubtitle>