This commit introduces the foundational `base.html` template, setting up the common structure and styling for shared templates across the application.
- **New Features**
- Initial `base.html` template for consistent page structure.
- Integration of Tailwind CSS for modern and utility-first styling.
- Default application-wide dark theme enabled.
- Defined `content` block for inheritance by child templates.
- Configured a responsive container (`container mx-auto px-4`) for main content.
sankalp