Release v2.8.3: UI/UX Polish & Bugfixes

Fix (Navigation): Header State Management

• Global Modal State: Refactored settings modal state to App.jsx level, ensuring Header buttons (Settings & Language) work consistently across all routes (Dashboard & Ranking).
• Cross-Route Functionality: Fixed issue where configuration and language buttons were non-responsive in Ranking page due to isolated state management.

Fix (i18n): Complete Internationalization

• Missing Translations: Added complete translations for Help Modal, Settings Modal, Ranking table, and Navigation links.
• Header Navigation: Implemented i18n for "Buscar/Search" and "Ranking" navigation links.
• Modal Content: Fully translated Help Modal (about, token setup, usage steps) and Settings Modal (title, description, labels, buttons).
• Ranking Page: Translated all table headers, loading/error messages, and empty state content.

UX: Universal Access to Settings

• Consistent Experience: Users can now access settings and change language from any page in the application.
• State Persistence: Modal state properly managed globally to prevent navigation issues.