[Issue]: Implement Jest and CI

[RenaudBernier]

Branch Name

feature/48-jest-ci

Task

Implement Jest and make CI:

• Run Jest tests
• Run ESLint

Acceptance Criteria

• When pushing, tests are run as part of CI

Checklist

• I have checked for duplicate issues.
• I have assigned the issue to the correct project board.
• I have tagged the issue properly.

Code of Conduct

• I agree to follow this project's Code of Conduct