Fix image loading error (#2865)

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---------

Co-authored-by: NiazSagor <niazsagor@gmail.com>
Co-authored-by: Niaz Sagor <50655067+NiazSagor@users.noreply.github.com>

compass_app/app/lib/ui/activities/widgets/activity_entry.dart

@@ -69,7 +69,7 @@ class ActivityEntry extends StatelessWidget {
 }
 
 class _ActivityErrorPlaceholder extends StatelessWidget {
-  const _ActivityErrorPlaceholder({super.key});
+  const _ActivityErrorPlaceholder();
 
   @override
   Widget build(BuildContext context) {