recieve fixes

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

@@ -164,7 +164,7 @@ public class ReceiveController extends WalletFormController implements Initializ
     @Subscribe
     public void walletHistoryChanged(WalletHistoryChangedEvent event) {
         if(event.getWallet().equals(walletForm.getWallet())) {
-            if(event.getHistoryChangedNodes().contains(currentEntry.getNode())) {
+            if(currentEntry != null && event.getHistoryChangedNodes().contains(currentEntry.getNode())) {
                 updateLastUsed();
             }
         }

src/main/resources/com/sparrowwallet/sparrow/wallet/receive.css

@@ -10,4 +10,8 @@
 .receive-form .form .fieldset:horizontal .label-container {
     -fx-pref-width: 90px;
     -fx-pref-height: 25px;
+}
+
+#lastUsedField .input-container {
+    -fx-alignment: center-left;
 }

src/main/resources/com/sparrowwallet/sparrow/wallet/receive.fxml

@@ -42,8 +42,8 @@
                     <Field text="Derivation:">
                         <CopyableLabel fx:id="derivationPath" />
                     </Field>
-                    <Field text="Last Used:">
-                        <Label fx:id="lastUsed" />
+                    <Field fx:id="lastUsedField" text="Last Used:">
+                        <Label fx:id="lastUsed" contentDisplay="RIGHT" />
                     </Field>
                 </Fieldset>
             </Form>