CMS UI Migration Fix and Frontend Consistency Cleanup

Fix and refine the recent UI migration that removes the [login to view URL] library and replaces it with the project's System UI implementation. The previous PR caused styling regressions, including broken CSS, duplicate components, and inconsistencies across the CMS interface. Most of the migration work has already been completed, and the focus is now on testing, debugging, and polishing the implementation. The task is to review all CMS routes and screens, identify and fix any pages that fail to load correctly, resolve remaining CSS and Tailwind-related issues, and ensure a consistent user experience throughout the platform. Key areas include the setup wizard, dashboard, settings, users, media gallery, and any other CMS pages. The goal is to deliver a clean, modern, and enterprise-grade interface while preserving the existing navigation structure and layout. All pages should load correctly, maintain visual consistency, and behave as expected across the application. Required skills include SVelte, Tailwind CSS, frontend debugging, UI implementation, and testing. Experience with design systems and accessibility best practices is beneficial. The project will be considered complete once all CMS routes have been verified, page loading issues have been resolved, styling inconsistencies have been fixed, and the updated UI is stable, polished, and no longer negatively impacted by The task is almost done , so we need further testing and tweaking [login to view URL] [login to view URL]

Project ID: 40482337