콘텐츠 상세, 팔로잉 리스트, 시리즈 상세 API

- 알림과 팔로우 상태값 추가

src/main/kotlin/kr/co/vividnext/sodalive/content/GetAudioContentDetailResponse.kt

@@ -47,5 +47,7 @@ data class AudioContentCreator(
     val creatorId: Long,
     val nickname: String,
     val profileImageUrl: String,
-    val isFollowing: Boolean
+    val isFollowing: Boolean,
+    val isFollow: Boolean,
+    val isNotify: Boolean
 )