renderImmediate method
Renders view immediately, bypassing frame-rate limiting.
Use this for urgent updates that must be visible before the next regular render cycle (e.g. fatal-error screens).
Implementation
void renderImmediate(String view) {
_initialize();
_pendingView = _composeView(view);
_dirty = true;
// Stop the stopwatch to force next render to proceed
_frameStopwatch.stop();
_flushInternal();
unawaited(terminal.flush());
}