add no. of items in queue list title

src/app.rs

@@ -65,7 +65,6 @@ impl App {
     pub fn tick(&mut self) {
         self.conn.update_status();
         self.update_queue();
-        // self.browser.update_directory(&mut self.conn).unwrap();
     }
 
     pub fn quit(&mut self) {

src/ui.rs

@@ -106,6 +106,7 @@ fn draw_queue(frame: &mut Frame, app: &mut App, size: Rect) {
     let mut queue_state = ListState::default();
     let title = Block::default()
         .title(Title::from("Play Queue".green().bold()))
+        .title(Title::from(format!("({} items)", app.queue_list.list.len()).bold()))
         .title(
             Title::from(format!("Volume: {}%", app.conn.volume).bold().green())
                 .alignment(Alignment::Right),