feat: menu bar popups

examples/context-menu/Cargo.toml

@@ -11,4 +11,12 @@ tracing-log = "0.2.0"
 [dependencies.libcosmic]
 path = "../../"
 default-features = false
-features = ["debug", "winit", "tokio", "xdg-portal", "multi-window"]
+features = [
+    "debug",
+    "winit",
+    "tokio",
+    "xdg-portal",
+    "multi-window",
+    "surface-message",
+    "wayland",
+]

examples/context-menu/src/main.rs

@@ -93,7 +93,7 @@ impl cosmic::Application for App {
     /// Creates a view after each update.
     fn view(&self) -> Element<Self::Message> {
         let widget = cosmic::widget::context_menu(
-            cosmic::widget::button::text(&self.button_label).on_press(Message::Clicked),
+            cosmic::widget::button::text(self.button_label.to_string()).on_press(Message::Clicked),
             self.context_menu(),
         );