be sure to hide the cursor explicitly

otherwise it will stay around on the previously drawn string (or so)

src/interactive/app.rs

@@ -152,6 +152,7 @@ impl TerminalApp {
  where
  B: Backend,
  {
+ terminal.hide_cursor()?;
  let display_options: DisplayOptions = options.clone().into();
  let traversal = Traversal::from_walk(options, input, move |traversal| {
  terminal.draw(|mut f| {