Complete Implementation
✅ What's New:

📂 Move Button - Move shows between your folders with one click (perfect for moving watched shows)
🔑 API Key Management - Users now provide their own TMDB API key with clear instructions and a settings modal (⚙️ button in header)
🎯 Simplified Filters - Removed streaming service filter, kept only HDR/DV, Criterion, and Miniseries
📅🖼️ Calendar Thumbnails - Show posters now display beautifully in calendar events for scheduled date ranges
📝 Notes Feature - Editable textarea on each card to add your personal notes about shows
💾 Data Persistence - All data syncs across browsers using browser.storage.sync (folders, schedules, watched seasons, notes, API key)
📤📥 Export/Import - Backup and restore all your data via JSON files (available in Settings and Calendar)

Made full screen