Fix for Bug #3105 - Clear-PnPRecycleBinItem help

[ToddKlindt]

Before creating a pull request, make sure that you have read the contribution file located at

https://github.com/pnp/PnP-PowerShell/blob/dev/CONTRIBUTING.md

Type

• [x] Bug Fix
• [ ] New Feature
• [ ] Sample

Related Issues?

Fixes #3015 completely

What is in this Pull Request ?

Changed help to reference correct property (LeafName) and removed alias for Where-Object.

[erwinvanhunen]

Thanks Todd!