feat: seperate single and multi choice questions

src/modules/submissions/providers/answer/calculate-result.provider.ts

@@ -162,7 +162,7 @@ export class CalculateResultProvider {
       if (!question) continue;
 
       if (
-        question.type === QuestionType.MULTI_CHOICE &&
+        question.type === QuestionType.SINGLE_CHOICE &&
         answer.choiceId !== undefined
       ) {
         const choice =
@@ -192,7 +192,7 @@ export class CalculateResultProvider {
     questions.forEach((question) => {
       const answerScores: number[] = [];
 
-      if (question.type === QuestionType.MULTI_CHOICE) {
+      if (question.type === QuestionType.SINGLE_CHOICE) {
         question.choices.forEach((choice) => {
           answerScores.push(choice.score);
         });