refactor: do not exit on script finish

install-prerequisites.ps1

@@ -254,7 +254,7 @@ Write-Step "Checking Prerequisites"
 
 if (-not (Test-WingetAvailable)) {
     Write-Host "`nInstallation cannot continue without winget." -ForegroundColor Red
-    exit 1
+    return
 }
 
 Write-Success "winget is available"
@@ -630,9 +630,4 @@ else {
         Write-Host ""
     }
 
-    exit 1
 }
-
-#endregion
-
-exit 0