begin libadwaita headerbar tabs integration

src/app/browser/window/header/tray/tab.rs

@@ -1,30 +0,0 @@
-use gtk::{gio::SimpleAction, prelude::ActionExt, prelude::ButtonExt, Button};
-use std::sync::Arc;
-
-pub struct Tab {
-    pub gobject: Button,
-}
-
-impl Tab {
-    // Construct
-    pub fn new(action_tab_append: Arc<SimpleAction>) -> Self {
-        // Init widget
-        let gobject = Button::builder()
-            .icon_name("tab-new-symbolic")
-            .tooltip_text("New tab")
-            .build();
-
-        // Init events
-        gobject.connect_clicked(move |_| {
-            action_tab_append.activate(None);
-        });
-
-        // Return activated struct
-        Self { gobject }
-    }
-
-    // Getters
-    pub fn gobject(&self) -> &Button {
-        &self.gobject
-    }
-}