Use UnifiedTemplateManager at Runtime

[dhaura]

Current Limitation

• Currently, in most of the places where an email is sent at runtime, we use EmailTemplateManagerImpl which was used for previous Email Template v1 and v2 APIs.

Suggested Improvement

• With the introduction of template inheritance Provide the Capability to Override Email/SMS Template Content by Sub Orgs #21214, a new template manager is introduced, UnifiedTemplateManager, which is more suited to be used at runtime since it returns the resolved template that should be sent for any scenario.

Version

7.1.0-m6-SNAPSHOT