System config form: notification settings

This form is used for managing settings for auto removal of old notifications

File path/forms/notifications/general-config.xml
Form IDnotifications.general-config
<?xml version="1.0" encoding="UTF-8"?>

<form i18nBaseUri="cms:notifications.configure.general.form." feature="admin">
    <tab id="default">
        <fieldset id="default" sortorder="10">
            <field name="keep_notifications_for_days"   control="spinner"      default="0" />
        </fieldset>
    </tab>
</form>