Quick Explorer v0.1.20

✨ Icon Refresh & Production Stability

• New Visual Identity: Updated the application icon to the final high-fidelity version (FINAL8.PNG), providing a more polished and professional look.
• 🛡️ Thumbnail Session Safety: Implemented a robust session-aware thumbnail queuing system. Thumbnails now load reliably even when switching tabs rapidly or during drag-and-drop operations in production builds.
• ⚡ Performance Polish: Optimized icon generation and splash screen assets for faster startup and better visual consistency.