feat: display image dimensions in title

src/main.rs

@@ -170,11 +170,18 @@ impl State {
     fn subscription(&self) -> Subscription<Message> {
         event::listen().map(Message::Event)
     }
+    fn title(&self) -> String {
+        match self.image.as_ref() {
+            Some(image) => format!("imagey {}x{}", image.width(), image.height()),
+            None => format!("imagey"),
+        }
+    }
 }
 
 fn main() -> Result<(), iced::Error> {
     iced::application(State::new, State::update, State::view)
         .subscription(State::subscription)
+        .title(State::title)
         .theme(Theme::custom(
             "custom",
             theme::Palette {