Enhancement: show username and hostname

### Describe the feature you'd like
Is it possible to add a setting that can show the current `username` and `hostname`

### Describe risks you've considered
I think it wouldn't have much risk.

### Describe alternatives you've considered
I can use `echo user` and `hostname` to show this, but can I show it in the bottom status bar. I often login the remote machine. So if I can see which host I am current in, it would be nice!


I think it can be achieved by edit the `script.sh`, but I am not sure how to do it.