Export Cmdlets instead of Functions

Module should export `CmdletsToExport` rather than `FunctionsToExport`

[docs](https://learn.microsoft.com/en-us/powershell/scripting/developer/module/how-to-write-a-powershell-module-manifest?view=powershell-7.4)

I think this should "just work", but it warrants some testing and a version bump