Decouple iris-core from winit

src/default/render.rs

@@ -52,7 +52,7 @@ impl UiRenderer {
         self.config.width = size.width;
         self.config.height = size.height;
         self.surface.configure(&self.device, &self.config);
-        self.ui.resize(size, &self.queue);
+        self.ui.resize((size.width, size.height), &self.queue);
     }
 
     fn create_encoder(device: &Device) -> CommandEncoder {