Refactor Update-Scripts function to enhance condition checks for file existence

1_Install.ps1

@@ -59,7 +59,7 @@ function Update-Scripts {
         }
         
         # Check if the download was successful (file exists and is not empty)
-        if (Test-Path $zipPath -and (Get-Item $zipPath).Length -gt 0) {
+        if ((Test-Path $zipPath) -and ((Get-Item $zipPath).Length -gt 0)) {
             Write-Host "Download successful!" -ForegroundColor Green
             
             try {
@@ -70,7 +70,7 @@ function Update-Scripts {
                 # Find the extracted directory
                 $extractedDir = Get-ChildItem -Path $tempDir -Directory | Select-Object -First 1
                 
-                if ($extractedDir -and (Test-Path $extractedDir.FullName)) {
+                if (($extractedDir) -and ((Test-Path $extractedDir.FullName))) {
                     # Copy all files except .git directory to current location
                     Write-Host "Installing updates..." -ForegroundColor Cyan
                     Get-ChildItem -Path $extractedDir.FullName | Where-Object { $_.Name -ne ".git" } | ForEach-Object {