refactor(api): improve notification and email handling #34

Job	Run time
Spell check	30s
Dependency review	5s
Find LaunchDarkly feature flags in diff	47s
Get Affected Packages	1m 37s
Unit test internal novu lib packages	3m 18s
Unit Test (@novu/api)	4m 8s
Unit test @novu/providers	0s
Unit Test (@novu/worker)	3m 7s
Unit test @novu/* public NPM packages (except providers)	5m 22s
Unit Test (@novu/inbound-mail)	2m 52s
Validate OpenAPI	3m 42s
Unit Test (@novu/ws)	3m 12s
Test E2E Web	0s
Test E2E Widget / e2e_widget	10m 14s
Test API (novu/api-ee) / Check if the secret exists or not.	1s
Test API (novu/api) / Check if the secret exists or not.	1s
Test API (novu/api-ee) / Test E2E	11m 16s
Test API (novu/api) / Test E2E	9m 36s
	59m 48s

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