ENGCOM-2330: [Forwardport] Added translation function for Magento_Braintree module's template file. #16771

 - Merge Pull Request #16771 from sanganinamrata/magento2:2.3-develop
 - Merged commits:
   1. db2ff9a
   2. 2456027
   3. 77acbc9
   4. 08ad531
   5. 7a30913
   6. 1f54168
   7. 00923c1
   8. 9416d30
   9. 2318a88
   10. 9a5fb7a
   11. e144b30
   12. ab22f6c
   13. f3411b6

Author: magento-engcom-team

app/code/Magento/Braintree/view/frontend/templates/paypal/button.phtml

@@ -29,6 +29,7 @@ $config = [
        class="action-braintree-paypal-logo" disabled>
         <img class="braintree-paypal-button-hidden"
              src="https://checkout.paypal.com/pwpp/2.17.6/images/pay-with-paypal.png"
-             alt="Pay with PayPal"/>
+             alt="<?= $block->escapeHtml(__('Pay with PayPal')) ?>"
+             title="<?= $block->escapeHtml(__('Pay with PayPal')) ?>"/>
     </button>
 </div>