update load src.config

src/notification_center/strategies/gmail.py

@@ -2,7 +2,6 @@ import smtplib
 from typing import Optional,TypedDict
 from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
-import src.config as _config
 from .notification_strategy import NotificationStrategy
 
 
@@ -51,6 +50,8 @@ class Gmail(NotificationStrategy):
 
 
 if __name__ == '__main__':
+    import src.config as _config
+
     params = {
         "to"  : ["poramet.tan@nectec.or.th"],
         "subject" : "Test Notification",