added missings consts

lib/presentation/views/main_menu/match_view/create_match/choose_game_view.dart

@@ -44,7 +44,7 @@ class _ChooseGameViewState extends State<ChooseGameView> {
         ),
         title: Text(
           AppLocalizations.of(context)!.choose_game,
-          style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
+          style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
         ),
         centerTitle: true,
       ),

lib/presentation/views/main_menu/match_view/create_match/choose_group_view.dart

@@ -53,7 +53,7 @@ class _ChooseGroupViewState extends State<ChooseGroupView> {
         ),
         title: Text(
           AppLocalizations.of(context)!.choose_group,
-          style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
+          style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
         ),
         centerTitle: true,
       ),

lib/presentation/views/main_menu/match_view/create_match/choose_ruleset_view.dart

@@ -49,7 +49,7 @@ class _ChooseRulesetViewState extends State<ChooseRulesetView> {
           ),
           title: Text(
             AppLocalizations.of(context)!.choose_ruleset,
-            style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
+            style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
           ),
           centerTitle: true,
         ),

lib/presentation/views/main_menu/match_view/create_match/create_match_view.dart

@@ -120,7 +120,7 @@ class _CreateMatchViewState extends State<CreateMatchView> {
         scrolledUnderElevation: 0,
         title: Text(
           AppLocalizations.of(context)!.create_new_match,
-          style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
+          style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
         ),
         centerTitle: true,
       ),