라이브 시작시간 UTC 적용

라이브 상세와 수정 화면에서 UTC 기준 시간을 표시한다.
날짜 표기는 OS 언어 설정의 기본 포맷을 사용한다.

SodaLive/Sources/Live/Room/Edit/LiveRoomEditViewModel.swift

@@ -52,12 +52,19 @@ final class LiveRoomEditViewModel: ObservableObject {
             notice = room!.notice
             numberOfPeople = String(room!.numberOfParticipantsTotal)
             
-            let fromFormatter = DateFormatter()
-            fromFormatter.dateFormat = "yyyy.MM.dd EEE hh:mm a"
-            fromFormatter.locale = Locale(identifier: "en_US_POSIX")
-            
-            reservationDate = fromFormatter.date(from: room!.beginDateTime)!
-            reservationTime = fromFormatter.date(from: room!.beginDateTime)!
+            if let beginDate = room!.beginDateTimeUtc.parseUtcIsoDate() {
+                reservationDate = beginDate
+                reservationTime = beginDate
+            } else {
+                let fromFormatter = DateFormatter()
+                fromFormatter.dateFormat = "yyyy.MM.dd EEE hh:mm a"
+                fromFormatter.locale = Locale(identifier: "en_US_POSIX")
+                
+                if let legacyDate = fromFormatter.date(from: room!.beginDateTime) {
+                    reservationDate = legacyDate
+                    reservationTime = legacyDate
+                }
+            }
             
             let beginDate = reservationDate.convertDateFormat(dateFormat: "yyyy-MM-dd")
             let beginTime = reservationTime.convertDateFormat(dateFormat: "HH:mm")