[core] Add timestamp to chat.archive

src/core/engines/webjs/session.webjs.core.ts

@@ -826,6 +826,7 @@ export class WhatsappSessionWebJSCore extends WhatsappSession {
           const body: ChatArchiveEvent = {
             id: chat.id._serialized,
             archived: archived,
+            timestamp: chat.timestamp,
           };
           handler(body);
         });

src/structures/chats.dto.ts

@@ -41,4 +41,6 @@ export class ChatArchiveEvent {
   id: string;
 
   archived: boolean;
+
+  timestamp: number;
 }