LYNX-699 Apply suggestions from code review

Co-authored-by: Deepak Soni <deepaksoni@adobe.com>

Author: cod40403

app/code/Magento/SalesGraphQl/Model/Resolver/OrderTotal.php

@@ -118,8 +118,8 @@ private function getAppliedTaxesDetails(OrderInterface $order): array
                 'title' => $appliedTaxes['title'] ?? null,
                 'amount' => [
                     'value' => $appliedTaxes['amount'] ?? 0,
-                    'currency' => $order->getOrderCurrencyCode(),
-                ],
+                    'currency' => $order->getOrderCurrencyCode()
+                ]
             ],
             $this->getAllAppliedTaxesOnOrders($order)
         );

dev/tests/api-functional/testsuite/Magento/GraphQl/Sales/PlaceOrderTaxTitleTest.php

@@ -78,7 +78,7 @@ protected function setUp(): void
         DataFixture(CustomerFixture::class, as: 'customer'),
         DataFixture(CustomerCartFixture::class, ['customer_id' => '$customer.id$'], as: 'quote'),
         DataFixture(AddProductToCartFixture::class, ['cart_id' => '$quote.id$', 'product_id' => '$product.id$']),
-        DataFixture(QuoteIdMask::class, ['cart_id' => '$quote.id$'], 'quoteIdMask'),
+        DataFixture(QuoteIdMask::class, ['cart_id' => '$quote.id$'], 'quoteIdMask')
     ]
     public function testTaxTitleOnPlaceOrder(): void
     {
@@ -114,7 +114,7 @@ public function testTaxTitleOnPlaceOrder(): void
      * @param string $maskedQuoteId
      * @return string
      */
-    private function getSetShippingAddressOnCartMutation(string $maskedQuoteId)
+    private function getSetShippingAddressOnCartMutation(string $maskedQuoteId): string
     {
         return <<<MUTATION
             mutation {