convert ETH/WETH not waits for transaction

[JoaoCampos89]

The Converting ETH <--> WETH process does not wait for the transaction to complete, giving to the user the feeling that the transaction is almost instant.
How to solve the issue:
store/blockchain/actions.ts

export const updateTokenBalances: ThunkCreator<Promise<any>> = (txHash?: string) => {
    return async (dispatch, getState, { getWeb3Wrapper }) => {
        const state = getState();
        const ethAccount = getEthAccount(state);
        const knownTokens = getKnownTokens();
        const wethToken = knownTokens.getWethToken();
        const web3Wrapper = await getWeb3Wrapper();
        if (txHash) {
            const tx = await web3Wrapper.awaitTransactionSuccessAsync(txHash);
        }
        const allTokenBalances = await tokensToTokenBalances([...knownTokens.getTokens(), wethToken], ethAccount);
        const wethBalance = allTokenBalances.find(b => b.token.symbol === wethToken.symbol);
        const tokenBalances = allTokenBalances.filter(b => b.token.symbol !== wethToken.symbol);
        dispatch(setTokenBalances(tokenBalances));
        const ethBalance = await web3Wrapper.getBalanceInWeiAsync(ethAccount);
        if (wethBalance) {
            dispatch(setWethBalance(wethBalance.balance));
        }
        dispatch(setEthBalance(ethBalance));
        return ethBalance;
    };
};

if txhash is passed as argument we wait to the transaction to complete before update token balances