fix: message ordering using NORMALIZED_DATE_SENT instead of NORMALIZED_DATE_RECEIVED

app/src/main/java/org/thoughtcrime/securesms/database/MmsSmsDatabase.java

@@ -122,7 +122,7 @@ public class MmsSmsDatabase extends Database {
   }
 
   public Cursor getConversation(long threadId, long offset, long limit) {
-    String order     = MmsSmsColumns.NORMALIZED_DATE_RECEIVED + " DESC";
+    String order     = MmsSmsColumns.NORMALIZED_DATE_SENT + " DESC";
     String selection = MmsSmsColumns.THREAD_ID + " = " + threadId;
     String limitStr  = limit > 0 || offset > 0 ? offset + ", " + limit : null;