Merge remote-tracking branch 'origin/dev' into feat/questions-answers-en-submissions-groep-specifiek-maken-#163

# Conflicts:
#	backend/src/controllers/questions.ts
#	backend/src/controllers/submissions.ts
#	backend/src/data/questions/question-repository.ts
#	backend/src/interfaces/group.ts
#	backend/src/interfaces/question.ts
#	backend/src/interfaces/submission.ts
#	backend/src/routes/submissions.ts
#	backend/src/services/groups.ts
#	backend/src/services/questions.ts
#	backend/src/services/students.ts
#	backend/src/services/submissions.ts
#	common/src/interfaces/question.ts

backend/tests/data/assignments/submissions.test.ts

@@ -53,7 +53,7 @@ describe('SubmissionRepository', () => {
 
     it('should find the most recent submission for a group', async () => {
         const id = new LearningObjectIdentifier('id03', Language.English, 1);
-        const class_ = await classRepository.findById('id01');
+        const class_ = await classRepository.findById('8764b861-90a6-42e5-9732-c0d9eb2f55f9');
         const assignment = await assignmentRepository.findByClassAndId(class_!, 1);
         const group = await groupRepository.findByAssignmentAndGroupNumber(assignment!, 1);
         const submission = await submissionRepository.findMostRecentSubmissionForGroup(id, group!);