workbench: set role application on the layout element, not top level one

fixes #94847

src/vs/workbench/browser/layout.ts

@@ -893,6 +893,7 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 		);
 
 		this.container.prepend(workbenchGrid.element);
+		this.container.setAttribute('role', 'application');
 		this.workbenchGrid = workbenchGrid;
 
 		[titleBar, editorPart, activityBar, panelPart, sideBar, statusBar].forEach((part: Part) => {

src/vs/workbench/browser/workbench.ts

@@ -318,7 +318,6 @@ export class Workbench extends Layout {
 
 		// ARIA
 		setARIAContainer(this.container);
-		this.container.setAttribute('role', 'application');
 
 		// State specific classes
 		const platformClass = isWindows ? 'windows' : isLinux ? 'linux' : 'mac';