feat: implement tc token handling

TC token is required in certain cases to receive presence updates on chats

src/Socket/messages-recv.ts

@@ -268,6 +268,21 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		const from = jidNormalizedUser(node.attrs.from)
 
 		switch (nodeType) {
+		case 'privacy_token':
+			const tokenList = getBinaryNodeChildren(child, 'token')
+			for(const { attrs, content } of tokenList) {
+				const jid = attrs.jid
+				ev.emit('chats.update', [
+					{
+						id: jid,
+						tcToken: content as Buffer
+					}
+				])
+
+				logger.debug({ jid }, 'got privacy token update')
+			}
+
+			break
 		case 'w:gp2':
 			handleGroupNotification(node.attrs.participant, child, result)
 			break