translate internal folder files to chinese (#27638)

* translate

* update

* update

---------

Co-authored-by: jiaqiw <wangjiaqi50@huawei.com>

docs/source/zh/_toctree.yml

@@ -107,6 +107,26 @@
     - local: main_classes/image_processor
       title: Image Processor
     title: 主要类
+  - sections:
+    - local: internal/modeling_utils
+      title: 自定义层和工具
+    - local: internal/pipelines_utils
+      title: pipelines工具
+    - local: internal/tokenization_utils
+      title: Tokenizers工具
+    - local: internal/trainer_utils
+      title: 训练器工具
+    - local: internal/generation_utils
+      title: 生成工具
+    - local: internal/image_processing_utils
+      title: 图像处理工具
+    - local: internal/audio_utils
+      title: 音频处理工具
+    - local: internal/file_utils
+      title: 通用工具
+    - local: internal/time_series_utils
+      title: 时序数据工具
+    title: 内部辅助工具
   title: 应用程序接口 (API)