fix(toggle): trigger focus and blur on click (#30234)

Issue number: N/A

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

The blur and focus events do not trigger when clicking even though the
value changes. Those events are only triggered when dragged.

This leads to Angular validation to not work accurately when clicking so
the `ion-touched` is never added to the toggle since it relies on the
blur event.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- The blur and focus events also trigger on click. This follows the same
logic as `ion-checkbox`.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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screenshots of how the component looks before and after the change. -->

How to test:

Recommendation to use `toggle/test/basic/index.html`:
[Preview](https://ionic-framework-git-toggle-focus-ionic1.vercel.app/src/components/toggle/test/basic)

Add the following script:
```js
<script>
  document.addEventListener('ionChange', () => {
    console.log('toggle: ionChange')
  });

  document.addEventListener('ionFocus', () => {
    console.log('toggle: ionFocus')
  });

  document.addEventListener('ionBlur', () => {
    console.log('toggle: ionBlur')
  });
</script>
```

Verify that the focus and blur events trigger when clicking and
dragging.

core/src/components/toggle/toggle.tsx

@@ -138,6 +138,7 @@ export class Toggle implements ComponentInterface {
     const isNowChecked = !checked;
     this.checked = isNowChecked;
 
+    this.setFocus();
     this.ionChange.emit({
       checked: isNowChecked,
       value,