changed skeleton to only show when loading

lib/presentation/views/main_menu/groups_view.dart

@@ -21,11 +21,11 @@ class _GroupsViewState extends State<GroupsView> {
 
   final player = Player(id: 'p1', name: 'Sample');
   late final List<Group> skeletonData = List.filled(
-    8,
+    7,
     Group(
       id: '0',
       name: 'Sample Game',
-      members: [player, player, player, player],
+      members: [player, player, player, player, player, player],
     ),
   );
 

lib/presentation/widgets/top_centered_message.dart

@@ -21,7 +21,7 @@ class TopCenteredMessage extends StatelessWidget {
       child: Column(
         children: [
           Icon(icon, size: 45),
-          SizedBox(height: 10),
+          const SizedBox(height: 10),
           Text(
             title,
             style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),