Merge pull request #321 from twalla26/refactor/question-list

[Refactor] 로그인 유무에 따른 에러 처리와 응답 반환

Author: twalla26

backend/src/question-list/dto/get-all-question-list.dto.ts

@@ -4,4 +4,5 @@ export interface GetAllQuestionListDto {
     categoryNames: string[];
     usage: number;
     questionCount: number;
+    isScrap: boolean;
 }

backend/src/question-list/dto/question-list-contents.dto.ts

@@ -7,4 +7,6 @@ export interface QuestionListContentsDto {
     contents: Question[];
     usage: number;
     username: string;
+    isScrap: boolean;
+    scrapCount: number;
 }