set session timeout to 20 hours

this way if someone does some work in the evening, when they come in next morning
they'll still be logged in. but if someone does stuff in the morning and then leaves
notify, they'll be kicked out by the next day

unless they have an auto-refreshing page like the dashboard open

app/config.py

@@ -38,7 +38,7 @@ class Config(object):
     NOTIFY_APP_NAME = 'admin'
     NOTIFY_LOG_LEVEL = 'DEBUG'
     NOTIFY_LOG_PATH = '/var/log/notify/application.log'
-    PERMANENT_SESSION_LIFETIME = 3600  # seconds
+    PERMANENT_SESSION_LIFETIME = 20 * 60 * 60  # 20 hours
     REMEMBER_COOKIE_DURATION = timedelta(days=1)
     REMEMBER_COOKIE_HTTPONLY = True
     REMEMBER_COOKIE_NAME = 'notify_admin_remember_me'