Feat: Adjust the operation cell of the table on the file management page and dataset page #3221. (#7526)

### What problem does this PR solve?

Feat: Adjust the operation cell of the table on the file management page
and dataset page #3221.
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/components/icon-font.tsx

@@ -22,7 +22,7 @@ export function FileIcon({
   return (
     <span className={cn('size-4', className)}>
       <IconFont
-        name={isFolder ? 'file' : FileIconMap[getExtension(name)]}
+        name={isFolder ? 'file-sub' : FileIconMap[getExtension(name)]}
       ></IconFont>
     </span>
   );