CMS UI Refinement & Consistency

Refine the CMS to ensure all pages have a consistent and unified look and feel after switching from Skeleton.dev UI library to our native UI library. The focus is on aligning the theme and functionality across all routes so no pages appear disconnected or mismatched.

Scope of Work:
- Full review of existing CMS routes and screens (e.g., setup wizard, dashboard, settings, users, media gallery).
- Fix styling inconsistencies and broken elements while preserving the existing navigation structure.
- Ensure seamless theme integration throughout the platform with consistent visual hierarchy.
- Perform functionality checks to confirm correct behavior site-wide.

Deliverables:
A polished, stable, enterprise-grade interface that reflects one cohesive system. All fixes must align with modern UI standards using Tailwind CSS and best practices for design systems. Final work should leave no issues across any CMS pages.