[Added] Added "Open-With-Asynchronous" option to GUI settings. This function is used to support opening the GUI asynchronously to prevent the server from crashing due to the loading of special items.(Enabled by default in versions below 1.12.2)
[Optimized] Optimized API methods.
[Fixed] Fixed the bug that CancelledPacketHandleException was thrown when the GUI was opened asynchronously in versions below 1.12.2.