iOS: can change home indicator / status bar during runtime (#17204)

# Objective

- Followup on
#17179 (review)
- Can show / hide home indicator / status bar during runtime

## Solution

- react on window change

## Testing

- Tested on iOS

crates/bevy_winit/src/system.rs

@@ -550,8 +550,15 @@ pub(crate) fn changed_windows(
                     _ => winit_window.recognize_pan_gesture(false, 0, 0),
                 }
             }
-        }
 
+            if window.prefers_home_indicator_hidden != cache.window.prefers_home_indicator_hidden {
+                winit_window
+                    .set_prefers_home_indicator_hidden(window.prefers_home_indicator_hidden);
+            }
+            if window.prefers_status_bar_hidden != cache.window.prefers_status_bar_hidden {
+                winit_window.set_prefers_status_bar_hidden(window.prefers_status_bar_hidden);
+            }
+        }
         cache.window = window.clone();
     }
 }