docs(DynamicPage): add subcomponent docs (#7494)

Author: Lukas742

packages/main/src/webComponents/DynamicPage/DynamicPage.mdx

@@ -116,4 +116,16 @@ function DynamicPageWithStickyContent(props) {
 
 Please see the [Docs](?path=/docs/layouts-floorplans-toolbar--docs#open-popovers-with-toolbarbutton) of the `Toolbar` component.
 
+<Markdown>{SubcomponentsSection}</Markdown>
+
+## DynamicPageHeader
+
+<Description of={DynamicPageHeader} />
+<ArgTypesWithNote of={DynamicPageHeader} />
+
+## DynamicPageTitle
+
+<Description of={DynamicPageTitle} />
+<ArgTypesWithNote of={DynamicPageTitle} />
+
 <Footer />