Use new copilot-large icon (microsoft#235442)

Author: roblourens

src/vs/base/browser/ui/codicons/codicon/codicon.ttf

@@ -584,4 +584,5 @@ export const codiconsLibrary = {
 	codeReview: register('code-review', 0xec37),
 	copilotWarning: register('copilot-warning', 0xec38),
 	python: register('python', 0xec39),
+	copilotLarge: register('copilot-large', 0xec3a),
 } as const;

src/vs/base/common/codiconsLibrary.ts

@@ -136,7 +136,7 @@ export class ChatSetupContribution extends Disposable implements IWorkbenchContr
 					)
 				)
 			)!,
-			icon: Codicon.copilot,
+			icon: Codicon.copilotLarge,
 			content: disposables => disposables.add(this.instantiationService.createInstance(ChatSetupWelcomeContent, this.controller.value, this.context)).element,
 		});
 	}