feat: Upload a folder to knowledgebase (#17026)

Co-authored-by: Silow9 <soulskytony@gmail.com>

web/i18n/zh-Hans/dataset-creation.ts

@@ -35,7 +35,7 @@ const translation = {
     },
     uploader: {
       title: '上传文本文件',
-      button: '拖拽文件至此，或者',
+      button: '拖拽文件或文件夹至此，或者',
       browse: '选择文件',
       tip: '已支持 {{supportTypes}}，每个文件不超过 {{size}}MB。',
       validation: {