message: fix refactoring)
diff: @@ -1728,7 +1728,7 @@ class Exchange extends PureComponent<ExchangeProps, ExchangeState> {
  !isBuyCoinAvailableNetwork
  const isCorrectMetamaskNetwork = !metamask.isConnected() ||
  - (!isSellCoinNeedAddCorrectNetwork || !isBuyCoinNeedAddCorrectNetwork)
  + (!isSellCoinNeedAddCorrectNetwork && !isBuyCoinNeedAddCorrectNetwork)
  const isIncorrectMetamaskNetwork = metamask.isConnected() &&
  (isSellCoinNeedAddCorrectNetwork || isBuyCoinNeedAddCorrectNetwork)
  