Revamps editor.css to introduce a modern 3DBevel-inspired visual theme, adds structured variables, and implements new UI components including title bar, ribbon tabs, and quick access toolbar for improved usability and maintainability.
Added new navigation links for Dashboard, Editor, Player, Paper, Settings, Tables, and News sections. Each link includes click handlers to switch sections and active state styling. This expands the application's navigation options for better user access to different features.
