Fix F6 in extension page webviews

For #101185

Make sure we set the correct parent flow to

src/vs/workbench/contrib/extensions/browser/extensionEditor.ts

@@ -14,7 +14,7 @@ import { Action, IAction } from 'vs/base/common/actions';
 import { isPromiseCanceledError } from 'vs/base/common/errors';
 import { dispose, toDisposable, Disposable, DisposableStore, IDisposable } from 'vs/base/common/lifecycle';
 import { domEvent } from 'vs/base/browser/event';
-import { append, $, finalHandler, join, hide, show, addDisposableListener, EventType } from 'vs/base/browser/dom';
+import { append, $, finalHandler, join, hide, show, addDisposableListener, EventType, setParentFlowTo } from 'vs/base/browser/dom';
 import { EditorPane } from 'vs/workbench/browser/parts/editor/editorPane';
 import { IViewletService } from 'vs/workbench/services/viewlet/browser/viewlet';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
@@ -284,6 +284,7 @@ export class ExtensionEditor extends EditorPane {
 		const navbar = new NavBar(body);
 
 		const content = append(body, $('.content'));
+		content.id = generateUuid(); // An id is needed for the webview parent flow to
 
 		this.template = {
 			builtin,
@@ -575,7 +576,9 @@ export class ExtensionEditor extends EditorPane {
 			}, {}, undefined));
 
 			webview.claim(this, this.scopedContextKeyService);
+			setParentFlowTo(webview.container, template.content);
 			webview.layoutWebviewOverElement(template.content);
+
 			webview.html = body;
 
 			this.contentDisposables.add(webview.onDidFocus(() => this.fireOnDidFocus()));