Implementation of i18n & l10n and a dropdown to switch other language

Description

Implemented internationalization (i18n) and localization (l10n) support in the application along with a language switcher dropdown for dynamic language selection.

Changes Implemented

• Added i18n configuration and localization setup
• Integrated multilingual support across the application
• Created translation resource files for supported languages
• Implemented language persistence functionality
• Added a dropdown component for switching languages dynamically
• Updated UI text components to use translation keys
• Improved application accessibility and global usability

Features

• Dynamic language switching without page reload
• Scalable translation structure for adding future languages
• User-friendly language selection dropdown
• Localization-ready architecture

Supported Languages

• English
• Tamil
• Kannada
• Hindi

Testing Performed

• Verified language switching functionality
• Tested translation rendering across pages/components
• Checked fallback language behavior
• Validated persistence after refresh/navigation

Outcome

The application now supports multilingual user interaction with seamless language switching and improved localization support.

Closes #4 (closed)