(Backend) - Adding a New Guild Does Not Send Emails For Initial Lead Members

[mjperry91]

Describe the bug
When adding a new guild with at least 1 lead will not send an email to that lead, or any additional members that where initially there on create. When editing/updating an existing guild by adding a new member or lead emails will be successfully sent. This appears to be an issue in the GuildServicesImpl::save method.

To Reproduce
Steps to reproduce the behavior:

1. Go to Directory/Guilds & Communities
2. Add new guild
3. Ensure you have at least 1 lead, and add some additional members
4. Observe no API calls are made to send emails.
5. NOTE: when local testing if you do not have a mail jet api key you will see an error when the server attempts to send emails. This isn't a problem, and is a way for you to verify the server is trying to send an email. Error Example: Failed to send emails for [[{"Email":"someemail@objectcomputing.com"}]]

Expected behavior
Emails should be sent to any lead/members upon initial creation of the guild, or there is a chance they will never be notified.