Add organize_enabled toggle for folders and improve UI with loading states

app/routes.py

@@ -242,8 +242,9 @@ def imap_config_modal():
 @login_required
 def test_imap_connection():
     """Test IMAP connection with provided configuration."""
-    print("HELLO")
     try:
+        import time
+        time.sleep(5)
         # Get form data
         server = request.form.get('server')
         port = request.form.get('port')