Fix: Ensure ImapSynchronizer::initialize() is called before using synchronizer in MailService::fetchMails()

- Added missing initialization of IMAP synchronizer before fetching mail items
- Fixed missing semicolon in error message
- This ensures IMAP connection parameters (host, port, SSL, credentials) are properly set
- Fixes the issue where breakpoints in ImapSynchronizer::initialize() were never hit
- Enables both manual folder sync and automatic SyncScheduler to work correctly

src/services/mailservice.cpp

@@ -62,6 +62,14 @@ void MailService::fetchMails(const QString &accountId, const QString &folderId)
         return;
     }
 
+
+    // Initialize synchronizer with account details before using it
+    if (!sync->initialize(*acc)) {
+        emit mailFetchError(accountId, folderId, tr("Failed to initialize synchronizer"));
+        sync->deleteLater();
+        return;
+    }
+
     // Connect progress signals (if they exist) using string-based syntax for compatibility
     QObject::connect(sync, SIGNAL(progressChanged(int)), this, SIGNAL(progressChanged(int)), Qt::QueuedConnection);
     QObject::connect(sync, SIGNAL(statusMessage(const QString&)), this, SIGNAL(statusMessage(const QString&)), Qt::QueuedConnection);