Fix iOS support in eframe (#3241)

* Fix the app only taking up half the screen size on iPad

* Fix request_repaint not working on iOS

* Always use run_and_exit on iOS since run_and_return is not supported by winit on iOS right now.

* Fix typo

* Fix eframe glow on ios

* Handle more cases

crates/eframe/src/native/epi_integration.rs

@@ -138,6 +138,9 @@ pub fn window_builder<E>(
 
     window_builder = window_builder_drag_and_drop(window_builder, *drag_and_drop_support);
 
+    // Always use the default window size / position on iOS. Trying to restore the previous position
+    // causes the window to be shown too small.
+    #[cfg(not(target_os = "ios"))]
     let inner_size_points = if let Some(mut window_settings) = window_settings {
         // Restore pos/size from previous session
 
@@ -163,6 +166,7 @@ pub fn window_builder<E>(
         *initial_window_size
     };
 
+    #[cfg(not(target_os = "ios"))]
     if *centered {
         if let Some(monitor) = event_loop.available_monitors().next() {
             let monitor_size = monitor.size().to_logical::<f64>(monitor.scale_factor());