Incorrect default for scope in powershell helpers

### What You Are Seeing?

In `Install-ChocolateyEnvironmentVariable` and `Install-ChocolateyPath`, the default scope for change is shown as `Process` for both, while they both actually default to `user` scope (if you look at the actual powershell code).


https://github.com/chocolatey/choco/blob/cdd1c0036f4c092625886d71fbff2e628b838742/src/chocolatey.resources/helpers/functions/Install-ChocolateyPath.ps1#L71

https://docs.chocolatey.org/en-us/create/functions/install-chocolateyenvironmentvariable#syntax
https://docs.chocolatey.org/en-us/create/functions/install-chocolateypath#syntax

### What is Expected?

That they show the correct default.

### How Did You Get This To Happen? (Steps to Reproduce)

N/A