Enhance cleaning script to remove the correct ts files

Author: musale

scripts/clean-typescript-ccs-files.ps1

@@ -16,7 +16,11 @@ $folderToCleanPath = Join-Path $targetDirectory -ChildPath $folderToClean
 if (Test-Path $folderToCleanPath) {
     Write-Host "Cleaning contents in: $folderToClean" -ForegroundColor Cyan
     Push-Location $folderToCleanPath
+    # Clean directories
     Get-ChildItem -Directory | ForEach-Object { Remove-Item -r $_.FullName }
+    # Clean TypeScript files except index.ts and *ServiceClient.ts
+    Remove-Item *.ts -Exclude "index.ts", "*ServiceClient.ts"
+    # Remove kiota lock file
     Remove-Item $kiotaLockFileName -ErrorAction SilentlyContinue -Verbose
     Pop-Location
     Write-Host "Successfully cleaned contents in: $folderToClean" -ForegroundColor Green
@@ -25,4 +29,4 @@ if (Test-Path $folderToCleanPath) {
 }
 
 Pop-Location
-Write-Host "Cleaning operation completed for target: $folderToClean derived from package: $packageName" -ForegroundColor Green
+Write-Host "Cleaning operation completed for target: $folderToClean derived from package: $packageName" -ForegroundColor Green