sendUrlToClipboard method Null safety
Implementation
Future<void> sendUrlToClipboard() {
final bytes = const ZLibEncoder().encode(_getJson().codeUnits);
final j = base64UrlEncode(bytes);
final s = 'https://jrpn.jovial.com/run${model.is15C ? '15' : ''}'
'/index.html?state=$j';
return Clipboard.setData(ClipboardData(text: s));
}