Enhance Spotify clone with dynamic playlist, interactive controls, and multi-song support

[Copilot]

This PR transforms the basic Spotify clone from a single-song player into a fully functional music streaming interface with playlist support and interactive controls.

What was changed

Before: The application had only one hardcoded song, non-functional navigation buttons, and a basic progress bar without seeking capability.

After: A complete music player experience with multiple songs, dynamic playlist rendering, and full user interaction support.

Key Features Implemented

🎵 Dynamic Song List Rendering

• Songs are now dynamically generated from the songs array with proper metadata
• Each song displays cover image, title, and duration
• Clean, responsive layout matching Spotify's design language

▶️ Individual Song Playback

• Users can click on any song in the playlist to play it immediately
• Each song has its own play/pause button that syncs with master controls
• Seamless switching between tracks with proper state management

⏭️ Navigation Controls

• Functional Next/Previous buttons for playlist navigation
• Smart wraparound: last song cycles to first, first song cycles to last
• Keyboard-friendly with proper cursor styling

🎛️ Interactive Progress Bar

• Users can now click and drag to seek to any position within the current song
• Real-time progress tracking with visual feedback
• Smooth seeking experience without playback interruption

📋 Dynamic Song Information

• Player area automatically updates with correct song title when switching tracks
• Synchronized visual indicators (play/pause icons, progress bar, song info)
• Proper state management across all UI components

Technical Implementation

// New core functions added:
renderSongs()           // Dynamic HTML generation for playlist
playSong(index)         // Seamless song switching with state sync
playNext()             // Forward navigation with wraparound
playPrevious()         // Backward navigation with wraparound
updateSongInfo()       // Real-time UI updates

Enhanced Data Structure

// Before: basic file path only
let songs = [{ filePath: "song.mp3" }]

// After: rich metadata for better UX
let songs = [{
    songName: "Main Hoon Na",
    filePath: "Main Hoon Na - Main Hoon Na 128 Kbps (1).mp3", 
    coverPath: "cover1.jpeg",
    duration: "5:35"
}]

User Experience Improvements

• Intuitive Interaction: Click any song to play, use next/prev buttons, or seek with progress bar
• Visual Feedback: All buttons show proper states (play/pause) and hover effects
• Responsive Design: Maintains clean layout across different screen sizes
• Synchronized Controls: Master play button works seamlessly with individual song controls

The Spotify clone now provides a realistic music streaming experience with smooth interactions and professional-grade functionality.


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[MrCoder420]

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