bug: Inline Modal doesn't allow full scrolling of content is reproducible with new version 8.4.1

### 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

The Modal interface in ion-select does not allow to scroll to the last item.

In this modal https://ionicframework.com/docs/api/select#modal add more items in the list so there is a scrollbar then the last item is not visible and remains hidden.
Try here - https://stackblitz.com/edit/4jhdta38?file=src%2Fcomponents%2FExample.vue

This issue is similar to the one fixed here - https://github.com/ionic-team/ionic-framework/issues/24745.

### Expected Behavior

The Modal should show all items in the list and the last item should not be invisible on scroll.

### Steps to Reproduce

1. Goto https://stackblitz.com/edit/4jhdta38?file=src%2Fcomponents%2FExample.vue or https://ionicframework.com/docs/api/select#modal
2. Add more items in the list so you get a scrollbar on the side.
3. Scroll down to the end of the list.

### Code Reproduction URL

https://stackblitz.com/edit/4jhdta38?file=src%2Fcomponents%2FExample.vue

### Ionic Info

"@ionic/vue": "^8.4.1",

### Additional Information

_No response_

Start with the ion-select modal example in Example.vue from the linked StackBlitz reproduction, then compare it with the modal documentation example. Add enough items to create a scrollbar, scroll to the end, and verify that the final item is fully visible in the modal.

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