Update v1.0.2 - UI Polish & Daily Systems Refactor

Hey everyone! Here's what's new in the latest update:

🎨 Visual Improvements

• New sprite icons replacing emojis throughout the game - Daily missions and top bar now use proper PNG sprites for a more polished look
• UI design enhancements with gradient backgrounds, rounded corners, and improved spacing across all screens    
• Shop icons have been updated for better visual consistency

🎁 Daily Rewards System Overhaul

• Completely refactored the daily rewards system using Godot's scene-based approach
• New 30-day reward grid (6x5 layout) for better visibility of upcoming rewards
• Dynamic reward generation from configuration tables
• More reliable save/load functionality

🐛 Bug Fixes & Performance

• Fixed various UI focus issues and removed distracting yellow borders
• Cleaned up obsolete test files and invalid resource references
• Improved overall game stability

The game should feel more polished and responsive now. Let me know if you encounter any issues!

Happy merging! 🐕