fix mailbox removal

index.ts

@@ -143,6 +143,7 @@ async function main() {
       updateCLI();
       reconnectServers(config);
     }
+    
     removeExpiredMailboxes();
   }, 2000);
 

subscriptionHandler.ts

@@ -23,7 +23,7 @@ export class Mailbox implements Subscriber {
   }
 
   get isExpired() {
-    if (this.ws) return false;
+    if (this.ws && this.ws.readyState == 1) return false;
 
     const today = new Date();
     return this.expiryDate < today;

websocket-handler.ts

@@ -208,7 +208,6 @@ export function processMessage(
 
 // MAILBOX
 export function removeExpiredMailboxes() {
-  const today = new Date();
   mailboxes.forEach((mailbox) => {
     if (mailbox.isExpired) removeMailbox(mailbox);
   });