Update the editor landmark regions (#24196)

packages/e2e-tests/specs/experiments/navigation.test.js

@@ -335,7 +335,7 @@ describe( 'Navigation', () => {
 			// Scope element selector to the Editor's "Content" region as otherwise it picks up on
 			// block previews.
 			const navBlockItemsLength = await page.$$eval(
-				'[aria-label="Content"][role="region"] li[aria-label="Block: Link"]',
+				'[aria-label="Editor content"][role="region"] li[aria-label="Block: Link"]',
 				( els ) => els.length
 			);
 
@@ -361,7 +361,7 @@ describe( 'Navigation', () => {
 			// Scope element selector to the "Editor content" as otherwise it picks up on
 			// Block Style live previews.
 			const navBlockItemsLength = await page.$$eval(
-				'[aria-label="Content"][role="region"] li[aria-label="Block: Link"]',
+				'[aria-label="Editor content"][role="region"] li[aria-label="Block: Link"]',
 				( els ) => els.length
 			);
 

packages/edit-post/src/components/layout/index.js

@@ -52,7 +52,17 @@ import WelcomeGuide from '../welcome-guide';
 import ActionsPanel from './actions-panel';
 
 const interfaceLabels = {
-	leftSidebar: __( 'Block Library' ),
+	leftSidebar: __( 'Block library' ),
+	/* translators: accessibility text for the editor top bar landmark region. */
+	header: __( 'Editor top bar' ),
+	/* translators: accessibility text for the editor content landmark region. */
+	body: __( 'Editor content' ),
+	/* translators: accessibility text for the editor settings landmark region. */
+	sidebar: __( 'Editor settings' ),
+	/* translators: accessibility text for the editor publish landmark region. */
+	actions: __( 'Editor publish' ),
+	/* translators: accessibility text for the editor footer landmark region. */
+	footer: __( 'Editor footer' ),
 };
 
 function Layout() {