MC-31362: Media folder update

- Fixed edge case in file driver

Author: Hwashiang Yu

lib/internal/Magento/Framework/Filesystem/Driver/File.php

@@ -983,6 +983,9 @@ public function getRealPathSafety($path)
             $path
         );
         $pathParts = explode(DIRECTORY_SEPARATOR, $path);
+        if (end($pathParts) == '.') {
+            $pathParts[count($pathParts)] = '';
+        }
         $realPath = [];
         foreach ($pathParts as $pathPart) {
             if ($pathPart == '.') {