bug: [vue] weird behaviour for ion-input focus within ion-modal

### Prerequisites

- [X] I have read the [Contributing Guidelines](https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#creating-an-issue).
- [X] I agree to follow the [Code of Conduct](https://ionicframework.com/code-of-conduct).
- [X] I have searched for [existing issues](https://github.com/ionic-team/ionic-framework/issues) that already report this problem, without success.

### Ionic Framework Version

v8.x

### Current Behavior

I have created ion-modal and used the `modelController` to present the model (just copied the code from [here](https://ionicframework.com/docs/api/modal#controller-modals),
the `Modal.vue` contains multiple` ion-input` and is triggered as
```
const modal = await modalController.create({
component: Modal,
initialBreakpoint: 0.5
});

modal.present();
```
when setting the `initialBreakpoint` the focus randomly moves the ion-inputs within the modal, when removing completely the `initialBreakpoint` it works fine.
see attached video

https://github.com/user-attachments/assets/c0dc01cc-e2f7-46a6-94c9-bcb69efb045d

### Expected Behavior

- moving between the ion-inputs should be smooth and focus should be set accordingly.

### Steps to Reproduce

1. create a fresh new installation
2. copy the implementation from [here](https://ionicframework.com/docs/api/modal#controller-modals)
3. set `initialBreakpoint` to 0.5

### Code Reproduction URL

https://ionicframework.com/docs/api/modal#controller-modals

### Ionic Info

Ionic:

Ionic CLI : 7.2.0 (/opt/homebrew/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/vue 8.4.0

Capacitor:

Capacitor CLI : 6.1.2
@capacitor/android : not installed
@capacitor/core : 6.1.2
@capacitor/ios : not installed

Utility:

cordova-res : not installed globally
native-run : 2.0.1

System:

NodeJS : v22.9.0 (/opt/homebrew/Cellar/node/22.9.0/bin/node)
npm : 10.8.3
OS : macOS Unknown

### Additional Information

_No response_

Start with the controller modal example linked in the issue and the Modal.vue component containing multiple ion-input elements. Reproduce the behavior in a fresh installation with initialBreakpoint set to 0.5, then compare it with the same modal without that setting; done means moving between inputs keeps focus smooth and correctly assigned.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.