dispose method

@override void dispose()

Disposes of terminal resources and restores original state.

This should restore:

• Cursor visibility
• Raw mode
• Alt screen
• Mouse tracking
• Bracketed paste

Implementation

@override
void dispose() {
  // Best-effort: restore output and control independently.
  try {
    _output.dispose();
  } catch (_) {}
  try {
    _control.dispose();
  } catch (_) {}
}