Xyfly[1.21]⚡️manage flight time for players⚡️ sqlite⚡️Mysql

· Updated MySQL database logic, fixed plugin crash bug on shutdown, now the plugin can successfully store players' flight time. · Added configuration option to toggle flight mode when players are in combat. · Updated config.yml file, please delete the original config.yml file and generate a new one. · Adjusted plugin code structure for better maintenance and updates.

· Split the main class to facilitate maintenance and extension. · Refactor the code to improve readability and maintainability. · Add comments to make the code easier to understand. · Fix the bug in the sqlitedb; the default player data storage is now sqlitedb. · Update the config file. Please delete the old config file and restart the server.

New Feature: Added a configuration option fallDamageAfterFlyTimeExpired to control whether players take fall damage after flight time expires. - Fixed several minor issues and optimized code performance. - Updated language files to add more localization support.