fix(cli): remove windows current link without rmdir

[TheAlexLichter]

I've hit a powershell issue while installing Vite+ after it hang in the git bash:

cmd : The directory is not empty.
  At line:589 char:9
  +         cmd /c rmdir "$CurrentLink" 2>$null
  +         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      + CategoryInfo          : NotSpecified: (The directory is not empty.:String) [], RemoteException
      + FullyQualifiedErrorId : NativeCommandError

To fix this, the installer now removes the existing current via Powershell logic and detects junctions or symlinks, as well as handling stale directories.

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[fengmk2]

@TheAlexLichter Nice!