Open tabs when opened

src/app.rs

@@ -382,6 +382,7 @@ impl App {
         let id = self.next_tab_id;
         self.next_tab_id += 1;
         self.tabs.insert(i, (id, tab));
+        self.open_tab_index = Some(i);
     }
 
     fn save_active_tab(&mut self, ctx: &Context) {