Refactor code for improved readability and consistency

- Removed unnecessary blank lines in various files to enhance code clarity.
- Updated comments for consistency and clarity across multiple classes and methods.
- Adjusted spacing in test files for better formatting and readability.

app/Http/Controllers/Api/System/VersionManagement/AppVersionController.php

@@ -11,7 +11,7 @@ class AppVersionController extends Controller
 {
     /**
      * Check for app updates
-     * 
+     *
      * This api should be triggered when the app is **launched**, and **current version** and **operating system** should be sent in body. It should check if there is any update available for the app.\
      * **Handle Response**:\
      *     *   **Update Required**: If the update is critical/mandatory, show a **blocking modal**. The user cannot dismiss it and must click a button to go to the App Store or Google Play Store.\