콘텐츠 메인 단편 - 일간랭킹

- 데이터가 5개 미만이면 5개 이상이 될 때까지 랭킹 계산 시작 날짜를 5일씩 이전으로 설정

src/main/kotlin/kr/co/vividnext/sodalive/content/main/tab/content/AudioContentMainTabContentService.kt

@@ -165,14 +165,24 @@ class AudioContentMainTabContentService(
         val dailyRankingEndDate = dailyRankingStartDate
             .plusDays(1)
 
-        return rankingService.getContentRanking(
-            memberId = memberId,
-            isAdult = isAdult,
-            contentType = contentType,
-            startDate = dailyRankingStartDate,
-            endDate = dailyRankingEndDate,
-            sortType = sortType
-        )
+        var loopCount = 0
+        var contentCount: Int
+        var contentList: List<GetAudioContentRankingItem>
+
+        do {
+            contentList = rankingService.getContentRanking(
+                memberId = memberId,
+                isAdult = isAdult,
+                contentType = contentType,
+                startDate = dailyRankingStartDate.minusDays(loopCount * 5L),
+                endDate = dailyRankingEndDate,
+                sortType = sortType
+            )
+            contentCount = contentList.size
+            loopCount++
+        } while (contentCount < 5)
+
+        return contentList
     }
 
     fun getNewContentByTheme(