ENGCOM-4670: Small PHPDocs fixes #20295

 - Merge Pull Request #20295 from SikailoISM/magento2:phpDoc-refactoring
 - Merged commits:
   1. b606003
   2. 49be805
   3. ab2d3b0

Author: magento-engcom-team

app/code/Magento/Theme/Controller/Adminhtml/System/Design/Theme/UploadJs.php

@@ -16,7 +16,6 @@ class UploadJs extends \Magento\Theme\Controller\Adminhtml\System\Design\Theme
      * Upload js file
      *
      * @return void
-     * @throws \Magento\Framework\Exception\LocalizedException
      */
     public function execute()
     {

app/code/Magento/Theme/Model/Design/Backend/File.php

@@ -109,9 +109,8 @@ public function beforeSave()
     }
 
     /**
-     * After Load
+     * @return $this
      *
-     * @return File
      * @throws LocalizedException
      */
     public function afterLoad()

app/code/Magento/Theme/Model/Design/Config/FileUploader/FileProcessor.php

@@ -79,8 +79,8 @@ public function __construct(
      * Save file to temp media directory
      *
      * @param  string $fileId
+     *
      * @return array
-     * @throws LocalizedException
      */
     public function saveToTmp($fileId)
     {

app/code/Magento/Theme/Model/ResourceModel/Design.php

@@ -46,7 +46,7 @@ protected function _construct()
      * Perform actions before object save
      *
      * @param \Magento\Framework\Model\AbstractModel $object
-     * @return $this
+     * @return void
      * @throws \Magento\Framework\Exception\LocalizedException
      */
     public function _beforeSave(\Magento\Framework\Model\AbstractModel $object)
@@ -152,7 +152,6 @@ protected function _checkIntersection($storeId, $dateFrom, $dateTo, $currentId)
             $dateConditions = [];
         }
 
-        $condition = '';
         if (!empty($dateConditions)) {
             $condition = '(' . implode(') OR (', $dateConditions) . ')';
             $select->where($condition);

app/code/Magento/Theme/Model/Wysiwyg/Storage.php

@@ -110,7 +110,7 @@ public function __construct(
      * Upload file
      *
      * @param string $targetPath
-     * @return bool
+     * @return array
      * @throws \Magento\Framework\Exception\LocalizedException
      */
     public function uploadFile($targetPath)