minor ui fix, safe unsubscribe

src/main/java/com/sparrowwallet/sparrow/control/EntryCell.java

@@ -228,6 +228,7 @@ class EntryCell extends TreeTableCell<Entry, Entry> {
         cell.getStyleClass().remove("utxo-row");
         cell.getStyleClass().remove("address-cell");
         cell.getStyleClass().remove("hashindex-row");
+        cell.getStyleClass().remove("confirming");
         cell.getStyleClass().remove("spent");
         cell.getStyleClass().remove("unspendable");
 

src/main/java/com/sparrowwallet/sparrow/wallet/TransactionEntry.java

@@ -211,7 +211,11 @@ public class TransactionEntry extends Entry implements Comparable<TransactionEnt
     public void walletTabsClosed(WalletTabsClosedEvent event) {
         for(WalletTabData tabData : event.getClosedWalletTabData()) {
             if(tabData.getWalletForm().getWallet() == wallet) {
-                EventManager.get().unregister(this);
+                try {
+                    EventManager.get().unregister(this);
+                } catch(IllegalArgumentException e) {
+                    //Safe to ignore
+                }
             }
         }
     }