Notifications for issues created via the JSD widget should have a configurable email sender address

Problem Definition

Requests created via widgets are registered to Created by com.atlassian.servicedesk.embedded
The notification emails that the end users receive show the sender as com.atlassian.servicedesk.embedded - this too is potentially problematic for some email system that are expecting email notifications to come from a specific email address and name, such as a the email address that sent the message.

Suggested Solution

Set the creator as reporter instead
Or provide an option to allow a JSD admin to set the value of the sender for these messages.

Why this is important

As the creator is set as com.atlassian.servicedesk.embedded, the From address of the notification will be sent from com.atlassian.servicedesk.embedded