"Bash(xargs *" gives all command access

https://github.com/ksamaschke/claude-code-vm/blob/5e974a43837e9ccdec3c5380c502b3bb8ea8f264/config/claude-settings.template.json#L246

Anything is allowed to be piped into xargs to be executed.
```
Bash(xargs *
```

Might as well just give permissions for `Bash(*)` for clarity then (and remove all other Bash specific permissions). 