Resolve "Update TypeORM"

Closes #442

TODO:

• (log) Debug integration test (fails when copying questionnaire) (when copying, MultipleChoiceQuestions are not loaded with their corresponding options while CheckboxQuestions are loaded with their options. These relations are both eager, not sure where the issue lies)

DONE:

• Seeder functions properly
• Application functions properly
• CLI commands are updated to new TypeORM syntax
• (log) Email test identified circular definition. see https://stackoverflow.com/questions/43176006/typeerror-class-extends-value-undefined-is-not-a-function-or-null and https://stackoverflow.com/questions/75733102/typescript-javascript-circular-dependency-class-extends-value-undefined-is-not