update songs list on db update

src/event/handler.rs

@@ -130,6 +130,17 @@ pub fn handle_key_events(key_event: KeyEvent, app: &mut App) -> AppResult<()> {
             // Update MPD database
             KeyCode::Char('U') => {
                 app.conn.conn.rescan()?;
+
+                // Update the songs list
+                app.conn.songs_filenames = app
+                    .conn
+                    .conn
+                    .listall()
+                    .unwrap()
+                    .into_iter()
+                    .map(|x| x.file)
+                    .collect();
+
                 app.browser.update_directory(&mut app.conn)?;
             }