Refactor Update-Scripts function to create temporary directory in script folder and update .gitignore for new paths

.gitignore

@@ -0,0 +1,16 @@
+# Ignore temporary directory used by update scripts
+/temp/
+/windows-install/
+
+# Other common files to ignore
+*.zip
+last_update_check.txt
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

1_Install.ps1

@@ -41,8 +41,8 @@ function Update-Scripts {
             }
         }
         
-        # Create a temporary directory to download files
-        $tempDir = Join-Path -Path $env:TEMP -ChildPath "windows-install-update"
+        # Create a temporary directory in the script folder (will be ignored by git)
+        $tempDir = Join-Path -Path $updateScriptDir -ChildPath "temp"
         if (Test-Path $tempDir) { Remove-Item $tempDir -Recurse -Force }
         New-Item -ItemType Directory -Path $tempDir -Force | Out-Null
         

2_ConfigUpdate.ps1

@@ -41,8 +41,8 @@ function Update-Scripts {
             }
         }
         
-        # Create a temporary directory to download files
-        $tempDir = Join-Path -Path $env:TEMP -ChildPath "windows-install-update"
+        # Create a temporary directory in the script folder (will be ignored by git)
+        $tempDir = Join-Path -Path $updateScriptDir -ChildPath "temp"
         if (Test-Path $tempDir) { Remove-Item $tempDir -Recurse -Force }
         New-Item -ItemType Directory -Path $tempDir -Force | Out-Null
         

3_ConfigAfterNextcloud.ps1

@@ -41,8 +41,8 @@ function Update-Scripts {
             }
         }
         
-        # Create a temporary directory to download files
-        $tempDir = Join-Path -Path $env:TEMP -ChildPath "windows-install-update"
+        # Create a temporary directory in the script folder (will be ignored by git)
+        $tempDir = Join-Path -Path $updateScriptDir -ChildPath "temp"
         if (Test-Path $tempDir) { Remove-Item $tempDir -Recurse -Force }
         New-Item -ItemType Directory -Path $tempDir -Force | Out-Null