fix hint when using createRootViewWithBridge to show correct method n…

…ame (#44585)

Summary:
I used the `createRootViewWithBridge` in a Project and got the hint to migrate to the `customiseView` Method. I searched for the Method, but found it under a different name: `customizeRootView`.
So i thought it would be helpful to use the correct Method name inside the hint message.

## Changelog:
<!-- Help reviewers and the release process by writing your own changelog entry.

Pick one each for the category and type tags:

For more details, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests
-->
[IOS] [FIXED] - fixed Method name in hint from customiseView to customizeRootView

Pull Request resolved: #44585

Test Plan:
* Use `createRootViewWithBridge`
* Should get a hint to migrate to `customizeRootView` method

Reviewed By: fabriziocucci

Differential Revision: D57431185

Pulled By: javache

fbshipit-source-id: 14f8c33771551ea3fb66d2c8f3fce4b4e3ef962a

packages/react-native/Libraries/AppDelegate/RCTAppDelegate.mm

@@ -105,7 +105,7 @@ - (void)_logWarnIfCreateRootViewWithBridgeIsOverridden
   if (currentClassImp != baseClassImp) {
     NSString *warnMessage =
         @"If you are using the `createRootViewWithBridge` to customize the root view appearence,"
-         "for example to set the backgroundColor, please migrate to `customiseView` method.\n"
+         "for example to set the backgroundColor, please migrate to `customizeRootView` method.\n"
          "The `createRootViewWithBridge` method is not invoked in bridgeless.";
     RCTLogWarn(@"%@", warnMessage);
   }