add: files directory

lib/features/intro/data/datasource/intro_datasource.dart

@@ -43,9 +43,10 @@ class IntroDatasourceImpl implements IIntroDatasource {
     try{
       if (LocalStorage.readData(key: MyConstants.extractCompleted) != 'true') {
         final File file = File(filePath);
+        final Directory directory = Directory('${StoragePath.documentDir.path}/files/');
         await ZipFile.extractToDirectory(
           zipFile: file,
-          destinationDir: StoragePath.documentDir,
+          destinationDir: directory,
           onExtracting: (zipEntry, progress) {
             streamController.add(progress);
             return ZipFileOperation.includeItem;