Update lib/components/list_items/message.dart, lib/utils/event_extension.dart files

lib/components/list_items/message.dart

@@ -55,7 +55,7 @@ class Message extends StatelessWidget {
     MainAxisAlignment rowMainAxisAlignment =
         ownMessage ? MainAxisAlignment.end : MainAxisAlignment.start;
 
-    if ([EventTypes.Message, EventTypes.Sticker].contains(event.type) && event.showThumbnail) {
+    if (event.showThumbnail) {
       color = Theme.of(context).scaffoldBackgroundColor.withOpacity(0.66);
       textColor = Theme.of(context).textTheme.bodyText2.color;
     } else if (ownMessage) {

lib/utils/event_extension.dart

@@ -19,9 +19,10 @@ extension LocalizedBody on Event {
   }
 
   bool get showThumbnail =>
-      kIsWeb ||
+      [EventTypes.Message, EventTypes.Sticker].contains(type) &&
+      (kIsWeb ||
       (content['info'] is Map &&
-          content['info']['size'] < room.client.store.maxFileSize);
+          content['info']['size'] < room.client.store.maxFileSize));
 
   String get sizeString {
     if (content["info"] is Map<String, dynamic> &&