examples: fixes to comply with Into<Option<_>>

examples/column_view_datagrid/grid_cell/mod.rs

@@ -19,6 +19,6 @@ impl Default for GridCell {
 
 impl GridCell {
     pub fn set_entry(&self, entry: &Entry) {
-        self.imp().name.set_text(Some(&entry.name));
+        self.imp().name.set_text(entry.name.as_str());
     }
 }

examples/dialog/main.rs

@@ -56,7 +56,7 @@ async fn dialog<W: IsA<gtk::Window>>(window: W) {
     let info_dialog = gtk::AlertDialog::builder()
         .modal(true)
         .message("You answered")
-        .detail(format!("Your answer: {answer:?}"))
+        .detail(format!("Your answer: {answer:?}").as_str())
         .build();
 
     info_dialog.show(Some(&window));

examples/list_view_apps_launcher/main.rs

@@ -76,8 +76,8 @@ fn build_ui(app: &gtk::Application) {
             let parent_window = list_view.root().and_downcast::<gtk::Window>().unwrap();
 
             gtk::AlertDialog::builder()
-                .message(format!("Failed to start {}", app_info.name()))
-                .detail(err.to_string())
+                .message(format!("Failed to start {}", app_info.name()).as_str())
+                .detail(err.to_string().as_str())
                 .modal(true)
                 .build()
                 .show(Some(&parent_window));

examples/tokio_async_request/main.rs

@@ -95,7 +95,7 @@ fn build_ui(app: &Application) {
             match response {
                 Ok(response) => {
                     for pokemon in response {
-                        let label = gtk::Label::new(Some(&pokemon.name));
+                        let label = gtk::Label::new(pokemon.name.as_str());
                         label.set_halign(gtk::Align::Start);
                         list_box.append(&label);
                     }