feat: Add theme toggle, navigation enhancements, and back-to-top button

- Implemented a theme toggle feature to switch between light and dark modes, with persistence using localStorage.
- Added a hamburger menu for mobile navigation, allowing users to toggle visibility of navigation links.
- Enhanced navigation links to highlight the current section on scroll.
- Introduced a back-to-top button that appears after scrolling down a certain distance.
- Created a new CSS file for styling, including responsive design adjustments.
- Added a social preview image for better sharing on social media platforms.

chore: Update translation command to support module consolidation

- Added an option to consolidate module translations into the main application's lang directory.
- Implemented user prompts for consolidation decisions during the translation extraction process.
- Adjusted file handling to ensure translations are correctly mapped based on consolidation settings.
- Updated the translation extraction logic to exclude module directories when scanning the main application.
- Changed the default model used for translation generation to a newer version.

Author: jayeshmepani