Adding gif playback

app/src/main/java/chat/rocket/android/chatroom/uimodel/UiModelMapper.kt

@@ -127,8 +127,13 @@ class UiModelMapper @Inject constructor(
 
             getChatRoomAsync(message.roomId)?.let { chatRoom ->
                 message.urls?.forEach { url ->
+                    if (url.url.endsWith(".gif")) {
+                        val attachment = Attachment(imageUrl = url.url)
+                        mapAttachment(message, attachment, chatRoom)?.let { list.add(it) }
+                    } else {
                         mapUrl(message, url, chatRoom)?.let { list.add(it) }
                     }
+                }
 
                 message.attachments?.mapNotNull { attachment ->
                     mapAttachment(message, attachment, chatRoom)