added icons, titles and changed font size

lib/presentation/views/main_menu/game_history_view.dart

@@ -178,9 +178,15 @@ class _GameHistoryViewState extends State<GameHistoryView> {
 
 Widget gameHistoryListView(allGameData, suggestedGameData) {
   if (suggestedGameData.isEmpty && allGameData.isEmpty) {
-    return TopCenteredMessage(message: "Keine Spiele erstellt");
+    return TopCenteredMessage(
+      icon: Icons.info,
+      title: "Info",
+      message: "Keine Spiele erstellt",
+    );
   } else if (suggestedGameData.isEmpty) {
     return TopCenteredMessage(
+      icon: Icons.search,
+      title: "Info",
       message: "Kein Spiel mit den Suchparametern gefunden.",
     );
   }

lib/presentation/views/main_menu/groups_view.dart

@@ -4,7 +4,7 @@ import 'package:game_tracker/data/db/database.dart';
 import 'package:game_tracker/data/dto/group.dart';
 import 'package:game_tracker/data/dto/player.dart';
 import 'package:game_tracker/presentation/widgets/full_width_button.dart';
-import 'package:game_tracker/presentation/widgets/group_tile.dart';
+import 'package:game_tracker/presentation/widgets/tiles/group_tile.dart';
 import 'package:game_tracker/presentation/widgets/top_centered_message.dart';
 import 'package:provider/provider.dart';
 import 'package:skeletonizer/skeletonizer.dart';
@@ -50,7 +50,9 @@ class _GroupsViewState extends State<GroupsView> {
                   if (snapshot.hasError) {
                     return const Center(
                       child: TopCenteredMessage(
-                        message: 'Error while loading group data.',
+                        icon: Icons.report,
+                        title: "Error",
+                        message: 'Group data couldn\'t\nbe loaded.',
                       ),
                     );
                   }
@@ -58,6 +60,8 @@ class _GroupsViewState extends State<GroupsView> {
                       (!snapshot.hasData || snapshot.data!.isEmpty)) {
                     return const Center(
                       child: TopCenteredMessage(
+                        icon: Icons.info,
+                        title: "Info",
                         message: 'No groups created yet.',
                       ),
                     );

lib/presentation/widgets/full_width_button.dart

@@ -12,7 +12,7 @@ class FullWidthButton extends StatelessWidget {
     return ElevatedButton(
       onPressed: onPressed,
       style: ElevatedButton.styleFrom(
-        minimumSize: Size(MediaQuery.of(context).size.width * 0.90, 60),
+        minimumSize: Size(MediaQuery.sizeOf(context).width * 0.9, 60),
         backgroundColor: CustomTheme.primaryColor,
         shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
       ),

lib/presentation/widgets/tiles/group_tile.dart

@@ -11,8 +11,7 @@ class GroupTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Container(
-      width: MediaQuery.of(context).size.width * 0.90,
-      margin: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
+      margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
       padding: const EdgeInsets.symmetric(vertical: 5, horizontal: 10),
       decoration: BoxDecoration(
         color: CustomTheme.boxColor,
@@ -30,7 +29,7 @@ class GroupTile extends StatelessWidget {
                 overflow: TextOverflow.ellipsis,
                 style: const TextStyle(
                   fontWeight: FontWeight.bold,
-                  fontSize: 20,
+                  fontSize: 18,
                 ),
               ),
               const Spacer(),
@@ -38,11 +37,11 @@ class GroupTile extends StatelessWidget {
                 '${group.members.length}',
                 style: const TextStyle(
                   fontWeight: FontWeight.w900,
-                  fontSize: 20,
+                  fontSize: 18,
                 ),
               ),
               const SizedBox(width: 3),
-              const Icon(Icons.group),
+              const Icon(Icons.group, size: 22),
             ],
           ),
           const SizedBox(height: 5),
@@ -66,7 +65,7 @@ class GroupTile extends StatelessWidget {
                     child: Text(
                       member.name,
                       style: const TextStyle(
-                        fontSize: 17,
+                        fontSize: 14,
                         fontWeight: FontWeight.bold,
                       ),
                     ),

lib/presentation/widgets/top_centered_message.dart

@@ -1,9 +1,16 @@
 import 'package:flutter/material.dart';
 
 class TopCenteredMessage extends StatelessWidget {
-  const TopCenteredMessage({super.key, required this.message});
+  const TopCenteredMessage({
+    super.key,
+    required this.icon,
+    required this.title,
+    required this.message,
+  });
 
+  final String title;
   final String message;
+  final IconData icon;
 
   @override
   Widget build(BuildContext context) {
@@ -11,10 +18,21 @@ class TopCenteredMessage extends StatelessWidget {
       padding: const EdgeInsets.only(top: 100),
       margin: const EdgeInsets.symmetric(horizontal: 10),
       alignment: Alignment.topCenter,
-      child: Text(
-        message,
-        style: const TextStyle(fontSize: 20),
-        textAlign: TextAlign.center,
+      child: Column(
+        children: [
+          Icon(icon, size: 45),
+          SizedBox(height: 10),
+          Text(
+            title,
+            style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+            textAlign: TextAlign.center,
+          ),
+          Text(
+            message,
+            style: const TextStyle(fontSize: 16),
+            textAlign: TextAlign.center,
+          ),
+        ],
       ),
     );
   }