ESP32-MCU-R0.4.16 WebUI-R3.2.8

ESP32-MCU-R0.4.16 WebUI-R3.2.8

• Migrated to ESP32 platform for improved performance and reliability
• Implemented dynamic station sign display
• Enhanced error handling with consistent modal dialogs for all errors
• Optimized JavaScript code for better performance and reduced size
• Improved UI components with consistent styling and better feedback
• Increased button handler task stack size for improved stability
• Added better code organization with descriptive comments
• Fixed JSON error parsing and display from backend responses
• Improved error handling and user feedback
• Enhanced stability for button handling
• Fixed minor UI issues
• Updated confirm dialogs to use the modal system
• Added station configuration editor
• Improved configuration file validation
• Added file size limit (100KB) for uploads
• Enhanced memory management for large configuration files