delete method

Implementation

@override
/// Delete from local storage
Future<void> delete(String key) async {
  try {
    final db = await _initDB();
    final transaction = db.transaction(storeName, 'readwrite');
    final store = transaction.objectStore(storeName);

    await store.delete(key);
    await transaction.completed;
    db.close();
  } catch (e) {
    debugPrint(e.toString());
    //rethrow;
  }
}