chore: remove unneeded reference

src/modules/Email.py

@@ -9,8 +9,6 @@ from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 from email.utils import formatdate
 
-from flask import current_app
-
 class EmailSender:
     def __init__(self, DashboardConfig):
         self.DashboardConfig = DashboardConfig
@@ -100,4 +98,4 @@ class EmailSender:
                 try:
                     smtp.quit()
                 except Exception:
-                    pass
+                    pass