feat(widget): 랭킹 순위 변동 표시 옵션을 추가한다

app/src/main/java/kr/co/vividnext/sodalive/v2/widget/creatorranking/CreatorRankingItem.kt

@@ -5,12 +5,12 @@ import kr.co.vividnext.sodalive.v2.widget.ranking.RankingChangeType
 data class CreatorRankingItem(
     val creatorId: Long,
     val rank: Int,
-    val previousRank: Int?,
     val rankChangeType: RankingChangeType,
     val rankChangeAmount: Int,
     val creatorName: String,
     val imageUrl: String,
-    val isBlocked: Boolean
+    val isBlocked: Boolean,
+    val showRankChange: Boolean = true
 ) {
     init {
         require(rank >= 1) { "rank must be greater than or equal to 1." }