fix ViGEm install script

redist/Install_Update_ViGEm.ps1

@@ -7,17 +7,12 @@ Break
 Return
 }
 
-if (get-module | Where-Object {$_.Name -eq "ViGEmManagementModule"}) 
+if (!(Get-Module -Listavailable -Name "ViGEmManagementModule"))
 {
-    $res =  Get-ViGEmBusDevice 
+    Register-PSRepository -Name nuget.vigem.org -SourceLocation https://nuget.vigem.org/ -InstallationPolicy Trusted
-    if ($res -ne $null)
+    Install-Module ViGEmManagementModule -Repository nuget.vigem.org
-    {
-        Get-ViGEmBusDevice | Remove-ViGEmBusDevice
-    }
-} else {
-    Register-PSRepository -Name nuget.vigem.org -SourceLocation https://nuget.vigem.org/ -InstallationPolicy Trusted -force
 }
 
-Install-Module ViGEmManagementModule -Repository nuget.vigem.org
+Get-ViGEmBusDevice | Remove-ViGEmBusDevice
-Install-ViGEmBusDeviceDriver
+Add-ViGEmBusDevice
-Add-ViGEmBusDevice
+Install-ViGEmBusDeviceDriver