upgrade controlsfx, fix notifications bug

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -1007,6 +1007,11 @@ public class AppController implements Initializable {
                     .threshold(5, Notifications.create().title("Sparrow").text("Multiple new wallet transactions").graphic(new ImageView(image)))
                     .onAction(e -> selectTab(event.getWallet()));
 
+            //If controlsfx can't find our window, we must set the window ourselves (unfortunately notification is then shown within this window)
+            if(org.controlsfx.tools.Utils.getWindow(null) == null) {
+                notificationBuilder.owner(tabs.getScene().getWindow());
+            }
+
             notificationBuilder.show();
         }
     }

src/main/java/com/sparrowwallet/sparrow/net/ElectrumServer.java

@@ -535,13 +535,13 @@ public class ElectrumServer {
         return Utils.bytesToHex(reversed);
     }
 
-    private String getScriptHash(TransactionOutput output) {
+    public static String getScriptHash(TransactionOutput output) {
         byte[] hash = Sha256Hash.hash(output.getScript().getProgram());
         byte[] reversed = Utils.reverseBytes(hash);
         return Utils.bytesToHex(reversed);
     }
 
-    static Map<String, String> getSubscribedScriptHashes() {
+    public static Map<String, String> getSubscribedScriptHashes() {
         return subscribedScriptHashes;
     }