Display "✅ Right" and "❌ Wrong" buttons after flip

[ramilyabm]

📋 Task Description

Display "✅ Right" and "❌ Wrong" buttons after flip in the flashcard component.

🎯 Acceptance Criteria

• Buttons appear only after flip and record user input
• User can mark cards as correct or incorrect
• Input is properly tracked for session statistics

📍 Phase

Phase 2: Study Mode & Flashcard System

🔗 Related Files

• src/components/Flashcard.tsx
• src/pages/Study.tsx

📝 Implementation Notes

• Buttons should only be visible after the card has been flipped to show the English translation
• Need to handle user input and update the correct/incorrect card tracking state
• Should integrate with existing card progression logic

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This issue was created from TODO1.md - Phase 2, first unresolved item