shell and powershell installers don't report that they installed aliases

This can be confusing because in some cases the alias is actually the "primary" name.

To be clear, they do install the aliases. I am talking about the information the print statements at the end of the installer

```
installing to /home/gankra/.mycoolapp
myrealbin
everything's installed!
```

This should ideally output

```
installing to /home/gankra/.mycoolapp
myrealbin
myalias
everything's installed!
```

Locate the shell and PowerShell installers and inspect the print statements at the end of each installer. Update the reported installation contents so every installed alias appears alongside the primary binary, matching the example output in the issue.

Written by the indexing model from the issue text.