Enhanced the NewsletterSignup component with comprehensive improvements to user experience, functionality, and engagement features.

[Vishnugupta2711]

📝 Description

Enhanced the NewsletterSignup component with comprehensive improvements to user experience, functionality, and engagement features.

✨ Changes Made

Form Enhancements

• ✅ Added name field for personalized experience
• ✅ Implemented subscription preferences (6 topic options)
• ✅ Added frequency selection (Weekly/Bi-weekly/Monthly)
• ✅ Enhanced form validation with detailed error messages
• ✅ Added privacy consent checkbox

Subscription Management

• ✅ Created subscriber dashboard for active users
• ✅ Implemented preference update functionality
• ✅ Added unsubscribe option with confirmation dialog
• ✅ Display subscription details and active topics

Archive Improvements

• ✅ Added search functionality (title and content)
• ✅ Implemented category filtering
• ✅ Added sort options (newest, oldest, most popular)
• ✅ Expanded archive from 3 to 6 newsletters
• ✅ Added tags, view counts, and read time estimates

Engagement Features

• ✅ Social sharing buttons (Twitter, Facebook, LinkedIn, Email)
• ✅ Expandable "Read More" sections for full content
• ✅ Subscriber statistics display (5,234+ subscribers)
• ✅ Enhanced visual design with gradients and hover effects

UX Improvements

• ✅ Results counter for filtered newsletters
• ✅ No results messaging
• ✅ Better visual hierarchy with cards
• ✅ Confirmation messages and balloons animation
• ✅ Footer with helpful links

🧪 Testing Done

• Form validation works correctly
• Search functionality returns accurate results
• Category and sort filters work as expected
• Subscription management updates state properly
• All buttons and interactions respond correctly
• Tested on local Streamlit environment
• No console errors or warnings
• Responsive layout checked

📸 Screenshots

[If possible, add before/after screenshots showing the improvements]

Before:

• Simple form with only email field
• 3 basic newsletter cards
• No search or filter options

After:

• Comprehensive form with preferences
• 6 detailed newsletters with tags
• Search, filter, and sort functionality
• Subscription management dashboard

🔗 Related Issues

Closes #[issue_number] (if applicable)
Fixes #[issue_number] (if applicable)

📋 Checklist

• Code follows project style guidelines
• Self-reviewed the code
• Tested thoroughly in local environment
• No breaking changes to existing functionality
• All element names remain unchanged for compatibility
• Comments added where necessary
• No sensitive data exposed

💡 Additional Notes

• All original element names preserved for backward compatibility
• Session state properly managed
• Regex validation maintained for email
• Enhanced CSS styling within existing structure