- improve server graceful shutdown

- e2e tests with supertest

- set up sentry

- calculate nps using 5 stars either (https://miro.medium.com/max/1400/0*NaLcMM8PmHi1osSi.png)

- search for specific words in the feedbacks content (sonic search)

- acl for advanced resources access

- feedbacks (title, content, author(name?,email?), isPublic)

- feedbacks can b public or not, when public, it will be able to be shown in pages like this https://refiner.io/ as testimonies

- relevance service ("was it useful for u?" y or n)

- user sign in/up with google email

- service owners will receive weekly emails reporting week feedbacks

- getfeedback.com

remove service api key (use id instead)

remove usecases interfaces from all modules

update comments in repository methods

fix feedbacks author duplication when it is null

ignore feedbacks author creation when it's email already registered