bug: Disabled button in a nav link should not navigate when clicked

### Prerequisites

- [X] I have read the [Contributing Guidelines](https://github.com/ionic-team/ionic-framework/blob/main/.github/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 include this feature request, without success.

### Describe the Feature Request

It would be beneficial to have a `disabled`-state on `ion-nav-link`, like the one that `ion-button` has.

### Describe the Use Case

With a `disabled`-state, we could conditionally disable an `ion-nav-link`, that includes an `ion-button`. Currently, this causes some problems:
```

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Even when `ion-button` is disabled, `ion-nav-link` triggers.

### Describe Preferred Solution

_No response_

### Describe Alternatives

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### Related Code

_No response_

### Additional Information

_No response_