[BUGFIX] Use TYPO3 configured proxy for deepl client

When converting the client, the proxy configuration via TYPO3 was no longer taken into account.
This will be made up for with this change.

Classes/AbstractClient.php

@@ -5,6 +5,7 @@
 namespace WebVision\WvDeepltranslate;
 
 use DeepL\Translator;
+use DeepL\TranslatorOptions;
 use Psr\Log\LoggerInterface;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use WebVision\WvDeepltranslate\Exception\ApiKeyNotSetException;
@@ -43,7 +44,16 @@ protected function getTranslator(): Translator
             throw new ApiKeyNotSetException('The api key ist not set', 1708081233823);
         }
 
-        $this->translator = GeneralUtility::makeInstance(Translator::class, $this->configuration->getApiKey());
+        $options = [];
+        if (
+            isset($GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy'])
+            && $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy'] !== ''
+            && GeneralUtility::isValidUrl($GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy'])
+        ) {
+            $options[TranslatorOptions::PROXY] = $GLOBALS['TYPO3_CONF_VARS']['HTTP']['proxy'];
+        }
+
+        $this->translator = new Translator($this->configuration->getApiKey(), $options);
 
         return $this->translator;
     }