Merge branch 'development' into feature/169-gruppenprofile-implementieren

# Conflicts:
#	pubspec.yaml

lib/core/constants.dart

@@ -3,5 +3,20 @@ class Constants {
   Constants._(); // Private constructor to prevent instantiation
 
   /// Minimum duration of all app skeletons
-  static Duration minimumSkeletonDuration = const Duration(milliseconds: 250);
+  static const Duration MINIMUM_SKELETON_DURATION = Duration(milliseconds: 250);
+
+  /// Maximum length for player names
+  static const int MAX_PLAYER_NAME_LENGTH = 32;
+
+  /// Maximum length for group names
+  static const int MAX_GROUP_NAME_LENGTH = 32;
+
+  /// Maximum length for match names
+  static const int MAX_MATCH_NAME_LENGTH = 32;
+
+  /// Maximum length for game names
+  static const int MAX_GAME_NAME_LENGTH = 32;
+
+  /// Maximum length for team names
+  static const int MAX_TEAM_NAME_LENGTH = 32;
 }