Address PR comments

Author: RafaelKayumov

WooCommerce/Classes/ViewRelated/Orders/Order Details/Shipping Labels/WooShipping Create Shipping Labels/WooShipping Customs/WooShippingCustomsItem.swift

@@ -127,7 +127,6 @@ struct WooShippingCustomsItem: View {
                     .foregroundColor(warningRedColor)
                     .footnoteStyle()
                     .renderedIf(!viewModel.isValidTariffNumber)
-                ///
 
                 Button {
                     isShowingHSTarrifInfoWebView = true

WooCommerce/Classes/ViewRelated/Orders/Order Details/Shipping Labels/WooShipping Create Shipping Labels/WooShipping Customs/WooShippingCustomsItemViewModel.swift

@@ -151,7 +151,7 @@ private extension WooShippingCustomsItemViewModel {
 
             let ((description, valuePerUnit, weightPerUnit, selectedCountry), hsTariffNumber, isHSTariffNumberRequired) = result
 
-            let hsTariffNumberRequirementMet = hsTariffNumber.isEmpty && !isHSTariffNumberRequired || isValidTariffNumber && hsTariffNumber.isNotEmpty
+            let hsTariffNumberRequirementMet = (hsTariffNumber.isEmpty && !isHSTariffNumberRequired) || (isValidTariffNumber && hsTariffNumber.isNotEmpty)
 
             requiredInformationIsEntered = description.isNotEmpty &&
             valuePerUnit.isNotEmpty &&