CommunityTokensStore 1.0 CommunityTokensStore.qml CurrenciesStore 1.0 CurrenciesStore.qml NetworkConnectionStore 1.0 NetworkConnectionStore.qml singleton RootStore 1.0 RootStore.qml TokenBalanceHistoryStore 1.0 TokenBalanceHistoryStore.qml BIP39_en 1.0 BIP39_en.qml