dispose static method
void
dispose()
تنظيف Isolate
Implementation
static void dispose() {
_fontLoaderReceivePort.close();
_fontLoaderIsolate?.kill();
_fontLoaderIsolate = null;
_fontLoaderSendPort = null;
_readyCompleter = null;
log('FontLoader Isolate disposed.', name: 'FontsLoad');
}