Fix threads sort order, newest first

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/threads/ThreadDetails.kt

@@ -27,5 +27,6 @@ data class ThreadDetails(
         val numberOfThreads: Int = 0,
         val threadSummarySenderInfo: SenderInfo? = null,
         val threadSummaryLatestTextMessage: String? = null,
+        val lastMessageTimestamp: Long? = null,
         var threadNotificationState: ThreadNotificationState = ThreadNotificationState.NO_NEW_MESSAGE
 )

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/database/mapper/EventMapper.kt

@@ -113,7 +113,9 @@ internal object EventMapper {
                         )
                     },
                     threadNotificationState = eventEntity.threadNotificationState,
-                    threadSummaryLatestTextMessage = eventEntity.threadSummaryLatestMessage?.root?.asDomain()?.getDecryptedTextSummary().orEmpty()
+                    threadSummaryLatestTextMessage = eventEntity.threadSummaryLatestMessage?.root?.asDomain()?.getDecryptedTextSummary().orEmpty(),
+                    lastMessageTimestamp = eventEntity.threadSummaryLatestMessage?.root?.originServerTs
+
             )
         }
     }

vector/src/main/java/im/vector/app/features/home/room/threads/list/viewmodel/ThreadListController.kt

@@ -55,7 +55,7 @@ class ThreadListController @Inject constructor(
                     it.timelineEvent
                 }
                 ?.forEach { timelineEvent ->
-                    val date = dateFormatter.format(timelineEvent.root.originServerTs, DateFormatKind.ROOM_LIST)
+                    val date = dateFormatter.format(timelineEvent.root.threadDetails?.lastMessageTimestamp, DateFormatKind.ROOM_LIST)
                     threadList {
                         id(timelineEvent.eventId)
                         avatarRenderer(host.avatarRenderer)