Add isSecondary to custom buttons in chartConfirmationContentPart (microsoft#263467)

Add isSecondary to custom buttons in chartConfirmationConfirmation

Author: joshspicer

src/vs/workbench/contrib/chat/browser/chatContentParts/chatConfirmationContentPart.ts

@@ -33,7 +33,8 @@ export class ChatConfirmationContentPart extends Disposable implements IChatCont
 		const buttons = confirmation.buttons
 			? confirmation.buttons.map(button => ({
 				label: button,
-				data: confirmation.data
+				data: confirmation.data,
+				isSecondary: button !== confirmation.buttons?.[0],
 			}))
 			: [
 				{ label: localize('accept', "Accept"), data: confirmation.data },