fix comments

lib/data/dao/match_dao.dart

@@ -338,10 +338,10 @@ class MatchDao extends DatabaseAccessor<AppDatabase> with _$MatchDaoMixin {
     return rowsAffected > 0;
   }
 
-  /// Entfernt die Gruppen-Verknüpfung des Matches mit der gegebenen [matchId].
-  /// Setzt die groupId auf null.
-  /// Gibt `true` zurück, wenn mehr als 0 Zeilen betroffen waren, ansonsten `false`.
-  Future<bool> deleteMatchGroup({required String matchId}) async {
+  /// Removes the group association of the match with the given [matchId].
+  /// Sets the groupId to null.
+  /// Returns `true` if more than 0 rows were affected, otherwise `false`.
+  Future<bool> removeMatchGroup({required String matchId}) async {
     final query = update(matchTable)..where((g) => g.id.equals(matchId));
     final rowsAffected = await query.write(
       const MatchTableCompanion(groupId: Value(null)),