Various improvements

submodules/TelegramUI/Components/Chat/ChatMessageBubbleItemNode/Sources/ChatMessageBubbleItemNode.swift

@@ -1610,6 +1610,11 @@ public class ChatMessageBubbleItemNode: ChatMessageItemView, ChatMessagePreviewI
             }
         }
         
+        if isPreview, let peer = firstMessage.peers[firstMessage.id.peerId] as? TelegramUser, peer.firstName == nil {
+            hasAvatar = false
+            effectiveAuthor = nil
+        }
+        
         var isInstantVideo = false
         if let forwardInfo = item.content.firstMessage.forwardInfo, forwardInfo.source == nil, forwardInfo.author?.id.namespace == Namespaces.Peer.CloudUser {
             for media in item.content.firstMessage.media {