target-shell ls on a file does not print file information

When calling `ls` on a file in `target-shell`, the output merely states that the path provided refers to a file. 


target-shell output when calling `ls -l` with a file as argument:
```bash
$ ls -l cat
/bin/cat: Is a file
```

Bash output when calling `ls -l` with a file as argument:

```bash
$ ls -l cat
-rwxr-xr-x 1 root root 67928 Jun 22  2025 cat
```