update backend api architecture

back/mails/imap/Mailbox.ts

@@ -35,7 +35,6 @@ export default class Mailbox {
         this.box = (await getMailbox(this.id))[0];
         const isReadOnly = false;
         this.imap.openBox(this.boxName, isReadOnly, (err, box) => {
-            console.log(typeof(box.highestmodseq))
             if (err) logger.err(err);
 
             // sync messages and flags