create tab page on item construct

src/app/browser/window/tab/item/widget.rs

@@ -0,0 +1,25 @@
+use adw::{TabPage, TabView};
+use gtk::Box;
+use std::sync::Arc;
+
+pub struct Widget {
+    gobject: TabPage,
+}
+
+impl Widget {
+    // Construct
+    pub fn new_arc(tab_view: &TabView, page: &Box, title: Option<&str>) -> Arc<Self> {
+        let gobject = tab_view.append(page);
+
+        if let Some(value) = title {
+            gobject.set_title(value);
+        }
+
+        Arc::new(Self { gobject })
+    }
+
+    // Getters
+    pub fn gobject(&self) -> &TabPage {
+        &self.gobject
+    }
+}