Add support for "from_name" field in email notifications

Introduced a new optional "from_name" attribute to email settings, allowing customization of the sender's display name in outgoing emails. Updated backend models, APIs, and front-end components to include and handle this field properly. This enhances email clarity and personalization for users.

backend/app/api/routes/admin_settings.py

@@ -1,4 +1,5 @@
 from email.message import EmailMessage
+from email.utils import formataddr
 import smtplib
 import ssl
 
@@ -34,6 +35,7 @@ def _to_out(settings: EmailNotificationSettings) -> EmailSettingsOut:
         smtp_host=settings.smtp_host,
         smtp_port=settings.smtp_port,
         smtp_username=settings.smtp_username,
+        from_name=settings.from_name,
         from_email=settings.from_email,
         use_starttls=settings.use_starttls,
         use_ssl=settings.use_ssl,
@@ -64,6 +66,7 @@ async def update_email_settings(
     settings.smtp_host = payload.smtp_host.strip() if payload.smtp_host else None
     settings.smtp_port = payload.smtp_port
     settings.smtp_username = payload.smtp_username.strip() if payload.smtp_username else None
+    settings.from_name = payload.from_name.strip() if payload.from_name else None
     settings.from_email = str(payload.from_email) if payload.from_email else None
     settings.use_starttls = payload.use_starttls
     settings.use_ssl = payload.use_ssl
@@ -94,7 +97,7 @@ async def test_email_settings(
 
     password = decrypt_secret(settings.encrypted_smtp_password) if settings.encrypted_smtp_password else None
     message = EmailMessage()
-    message["From"] = settings.from_email
+    message["From"] = formataddr((settings.from_name, settings.from_email)) if settings.from_name else settings.from_email
     message["To"] = str(payload.recipient)
     message["Subject"] = payload.subject
     message.set_content(payload.message)