Add AI Bot section and enhance portfolio with GoLang tech stack

[Copilot]

This PR enhances the portfolio by adding AI model training capabilities and a beautiful WhatsApp AI bot interaction section, along with updating the tech stack to include GoLang.

Changes Made

Hero Section Updates

• Updated the main description to highlight AI model training and WhatsApp bot creation
• Added mention of AI capabilities alongside existing web and mobile development skills

Tech Stack Enhancement

• Added GoLang to the Backend technologies section
• Maintains the clean list format with proper styling

New AI Bot Section

Created a stunning new section positioned between About and Resume that includes:

• Interactive WhatsApp Integration: Direct deep link to WhatsApp with pre-filled message
• Professional Feature Highlights:
  • Trained on portfolio & experience
  • 24/7 instant responses
  • Knowledge of all projects & skills
• Beautiful Design: WhatsApp-themed color scheme with gradient backgrounds and animations
• Engaging Copy: "Want to test my AI bot that talks like me? 🚀" with compelling call-to-action

Technical Improvements

• Responsive Design: Fully mobile-optimized layouts
• Smooth Animations: Pulse effects, hover transitions, and scroll-triggered animations
• Navigation Enhancement: Added AI Bot to the main navigation menu
• Performance Optimized: Efficient CSS with proper vendor prefixes and fallbacks

Design Features

The new AI bot section features:

• WhatsApp Brand Colors: Authentic green gradient (#25D366 to #128C7E)
• Interactive Elements: Animated WhatsApp icon with pulse effect
• Professional Card Design: Rounded corners, subtle shadows, and hover effects
• Feature Grid: Clean layout showcasing bot capabilities
• Call-to-Action: Prominent WhatsApp button with bounce animation

Technical Details

• Minimal Footprint: Only 252 lines added across 3 files
• Code Quality: Maintains existing code style and conventions
• Cross-Browser: Compatible CSS with proper fallbacks
• SEO Friendly: Semantic HTML structure with proper headings

The implementation provides visitors with an engaging way to interact with an AI bot that represents the developer, while maintaining the portfolio's professional aesthetic and user experience.

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