Refactor code structure for improved readability and maintainability (#473)

* Add ToolTips to Tweaks

Scripts/FileIO/LoadAppsFromFile.ps1

@@ -0,0 +1,45 @@
+# Returns list of apps from the specified file, it trims the app names and removes any comments
+function LoadAppsFromFile {
+    param (
+        $appsFilePath
+    )
+
+    $appsList = @()
+
+    if (-not (Test-Path $appsFilePath)) {
+        return $appsList
+    }
+
+    try {
+        # Check if file is JSON or text format
+        if ($appsFilePath -like "*.json") {
+            # JSON file format
+            $jsonContent = Get-Content -Path $appsFilePath -Raw | ConvertFrom-Json
+            Foreach ($appData in $jsonContent.Apps) {
+                $appId = $appData.AppId.Trim()
+                $selectedByDefault = $appData.SelectedByDefault
+                if ($selectedByDefault -and $appId.length -gt 0) {
+                    $appsList += $appId
+                }
+            }
+        }
+        else {
+            # Legacy text file format
+            Foreach ($app in (Get-Content -Path $appsFilePath | Where-Object { $_ -notmatch '^#.*' -and $_ -notmatch '^\s*$' } )) { 
+                if (-not ($app.IndexOf('#') -eq -1)) {
+                    $app = $app.Substring(0, $app.IndexOf('#'))
+                }
+
+                $app = $app.Trim()
+                $appString = $app.Trim('*')
+                $appsList += $appString
+            }
+        }
+
+        return $appsList
+    } 
+    catch {
+        Write-Error "Unable to read apps list from file: $appsFilePath"
+        AwaitKeyToExit
+    }
+}