Fix ClassCastError in Portfolio History Summary Popup

[ghost]

Fix another ClassCastError.

There is a Show Summary window which also has the same issue that PR #5358 fixed in Portfolio History.

Mar-26 15:49:37.872 [JavaFX Application Thread] ERROR bisq.common.setup.CommonSetup: Uncaught Exception from thread JavaFX Application Thread 
Mar-26 15:49:37.872 [JavaFX Application Thread] ERROR bisq.common.setup.CommonSetup: throwableMessage= bisq.core.offer.OpenOffer cannot be cast to bisq.core.trade.Trade 
Mar-26 15:49:37.872 [JavaFX Application Thread] ERROR bisq.common.setup.CommonSetup: throwableClass= class java.lang.ClassCastException 
Mar-26 15:49:37.872 [JavaFX Application Thread] ERROR bisq.common.setup.CommonSetup: Stack trace:
java.lang.ClassCastException: bisq.core.offer.OpenOffer cannot be cast to bisq.core.trade.Trade
    at bisq.desktop.main.portfolio.closedtrades.ClosedTradesDataModel.lambda$getTotalTxFee$7(ClosedTradesDataModel.java:166)

[ripcurlx]

utACK