Backport: servoshell: Foward WindowEvent::Focused events to egui (#42470)

When doing event handling on desktop servoshell, ensure that
`WindowEvent::Focused(true)` is forwarded to egui. This makes it so that
egui knows to show the text cursor in the URL bar input field.

Testing: We currently do not have a way to test visual behavior at this
level of servoshell.
Fixes: #42091.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
(cherry picked from commit 489c0f0159)

ports/servoshell/desktop/headed_window.rs

@@ -572,7 +572,6 @@ impl HeadedWindow {
         // Handle the event
         let mut consumed = false;
         match event {
-            WindowEvent::Focused(true) => state.handle_focused(window.clone()),
             WindowEvent::ScaleFactorChanged { scale_factor, .. } => {
                 // Intercept any ScaleFactorChanged events away from EguiGlow::on_window_event, so
                 // we can use our own logic for calculating the scale factor and set egui’s
@@ -632,6 +631,10 @@ impl HeadedWindow {
                     self.rebuild_user_interface(&state, &window);
                 }
 
+                if let WindowEvent::Focused(true) = event {
+                    state.handle_focused(window.clone());
+                }
+
                 if response.repaint && *event != WindowEvent::RedrawRequested {
                     self.winit_window.request_redraw();
                 }