normalize tab items component

src/app/browser/window/tab/page/navigation/bookmark.rs

@@ -1,28 +0,0 @@
-use gtk::Button;
-
-pub struct Bookmark {
-    widget: Button,
-}
-
-impl Bookmark {
-    // Construct
-    pub fn new() -> Self {
-        Self {
-            widget: Button::builder()
-                .icon_name("starred-symbolic")
-                .tooltip_text("Bookmark")
-                .sensitive(false)
-                .build(),
-        }
-    }
-
-    // Actions
-    pub fn update(&self) {
-        // @TODO
-    }
-
-    // Getters
-    pub fn widget(&self) -> &Button {
-        &self.widget
-    }
-}