Feat: Auto-save selected drivers and refine script execution

Adds a feature to automatically save the selected drivers to `Drivers.json` upon download, preserving the user's selection for future use.

Improves script execution by:
- Ensuring the disk cleanup process completes before proceeding.
- Suppressing progress bars globally for a cleaner console output.
- Hiding non-critical warnings during driver installation.
- Removing an unused BITS transfer function and trailing whitespace.

FFUDevelopment/FFU.Common/FFU.Common.Core.psm1

@@ -257,4 +257,7 @@ function Set-Progress {
     WriteLog "[PROGRESS] $Percentage | $Message"
 }
     
+# Suppress the default progress bar for a cleaner console output for any script importing this module.
+# $ProgressPreference = 'SilentlyContinue'
+    
 Export-ModuleMember -Function *