style(phpstan): improve code readability in OutputProviderOrder

Rearranged conditional statement checks for better readability. This involves the check for whether
the class 'QUI\\ERP\\Payments\\SEPA\\Provider' exists and if 'quiqqer/payment-sepa' package is
installed.

src/QUI/ERP/Order/Output/OutputProviderOrder.php

@@ -474,9 +474,10 @@ protected static function getEpcQrCodeImageImgSrc(Order $Order): bool | string
 
 
         // Prefer bank account set in SEPA module if available
-        if (class_exists('QUI\ERP\Payments\SEPA\Provider') && QUI::getPackageManager()->isInstalled(
-                'quiqqer/payment-sepa'
-            )) {
+        if (
+            class_exists('QUI\ERP\Payments\SEPA\Provider')
+            && QUI::getPackageManager()->isInstalled('quiqqer/payment-sepa')
+        ) {
             $creditorBankAccount = QUI\ERP\Payments\SEPA\Provider::getCreditorBankAccount();
         } else {
             $creditorBankAccount = BankAccounts::getCompanyBankAccount();