[TASK] Fix powermail dependency

Classes/Controller/BackendController.php

@@ -26,7 +26,6 @@ namespace SGalinski\SgNews\Controller;
  *  This copyright notice MUST APPEAR in all copies of the script!
  ***************************************************************/
 
-use In2code\Powermail\Utility\LocalizationUtility;
 use SGalinski\SgNews\Service\LicensingService;
 use SGalinski\SgNews\Utility\BackendNewsUtility;
 use TYPO3\CMS\Backend\Clipboard\Clipboard;
@@ -40,6 +39,7 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Core\Utility\VersionNumberUtility;
 use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
 use TYPO3\CMS\Extbase\Mvc\View\ViewInterface;
+use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 
 /**
  * News Controller
@@ -174,9 +174,6 @@ class BackendController extends ActionController {
 	 * @throws \InvalidArgumentException
 	 * @throws \UnexpectedValueException
 	 * @throws \TYPO3\CMS\Extbase\Persistence\Exception\InvalidQueryException
-	 * @throws \TYPO3\CMS\Extbase\Persistence\Generic\Exception
-	 * @throws \TYPO3\CMS\Extbase\Persistence\Generic\Exception\InvalidNumberOfConstraintsException
-	 * @throws \TYPO3\CMS\Extbase\Persistence\Generic\Exception\UnexpectedTypeException
 	 */
 	public function indexAction(array $filters = NULL) {
 		$showNewsList = FALSE;
@@ -282,7 +279,7 @@ class BackendController extends ActionController {
 	 * @throws \InvalidArgumentException
 	 */
 	public function initClipboard() {
-		if (is_array($this->clipboardCommandArray)) {
+		if (\is_array($this->clipboardCommandArray)) {
 			$clipObj = GeneralUtility::makeInstance(Clipboard::class);
 			$clipObj->initializeClipboard();
 			if ($this->clipboardCommandArray['paste']) {